{ "model": { "rank": 4132, "code": "thing-q177836", "model_id": "vr.tr.potassium-nitrate", "name": "potassium nitrate", "purpose": "Enable an agent to identify potassium nitrate, assess the condition and suitability of a particular lot, and determine compatible handling and use constraints.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q177836/", "tier": 2, "score": 78, "payload": { "layer": "wikidata", "aliases": [ "nitre", "Potassium (¹⁵N)nitrate", "Potassium (¹⁵N,¹⁸O₃)nitrate", "Potassium (¹⁴N)nitrate" ], "aliasCount": 4, "merged": 4, "knownIn": 78, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q177836", "url": "https://www.wikidata.org/wiki/Q177836", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T19:32:32Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 24.7, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087a7-6037-7a52-9fae-0de16fb8f435\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: potassium nitrate\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 695 things:\n# Batch 004: 100", "usd": 0, "recall": true }, "codex": { "seconds": 64.8, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087a7-602b-7e91-977d-6ad56a75b1a5\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: potassium nitrate\nRegistry id: vr.tr.potassium-nitrate\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entr" } } }, "metaModel": { "id": "THING-Q177836", "registryId": "vr.tr.potassium-nitrate", "name": "potassium nitrate", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q177836/", "model": { "registry_id": "vr.tr.potassium-nitrate", "name": "potassium nitrate", "purpose": "Enable an agent to identify potassium nitrate, assess the condition and suitability of a particular lot, and determine compatible handling and use constraints.", "definition": "Potassium nitrate (KNO₃) is an inorganic ionic compound composed of potassium and nitrate ions, ordinarily a white crystalline solid that dissolves in water and acts as an oxidizing agent.", "scope_statement": "This model owns potassium nitrate as the chemical substance KNO3 under registry entry vr.tr.potassium-nitrate, including its identity, grade, composition, physical state, measured properties and substance-specific constraints; it distinguishes the substance from formulations, products and processes that contain or use it.", "in_scope": [ "Chemical identity and traceable substance identifiers", "Lot-specific potassium nitrate content, moisture, impurities and grade", "Solid form, dissolution behaviour and thermal stability under stated conditions", "Oxidizing behaviour, incompatibilities and applicable hazard classifications", "Evidence supporting suitability for a stated use and disposition of unsuitable material" ], "out_of_scope": [ "Complete fertilizer, food, pharmaceutical or other product formulations containing potassium nitrate", "Potassium nitrite, sodium nitrate and other chemically distinct salts", "Industrial synthesis, mining and purification process models", "Pyrotechnic, propellant and explosive compositions or operating procedures", "Crop nutrient programmes, clinical treatment decisions and food manufacturing recipes" ], "distinguishing_features": [ "Identification must support potassium cations and nitrate anions in the composition KNO3; detecting nitrate alone cannot distinguish potassium nitrate from sodium nitrate.", "An analytical distinction between nitrate and nitrite is required where potassium nitrite substitution or contamination is plausible.", "A potassium-nitrate-containing mixture must be distinguished from a lot of the substance with declared impurities; a product name alone does not establish substance identity.", "The name saltpetre or saltpeter requires confirmation against chemical identity and composition rather than being accepted as sufficient identification.", "White crystalline appearance is compatible with potassium nitrate but cannot distinguish it from visually similar salts." ], "characteristics": [ { "name": "Chemical identity", "kind": "category", "unit_or_values": "KNO3; verified systematic name and CAS, EC and PubChem identifiers", "why_it_matters": "Connects analytical and documentary evidence to potassium nitrate rather than another nitrate or a formulated product." }, { "name": "Potassium nitrate assay", "kind": "measurement", "unit_or_values": "Mass percent, with analytical method, uncertainty and as-received or dry basis", "why_it_matters": "Establishes substance content and supports comparison with a specified grade." }, { "name": "Moisture content", "kind": "measurement", "unit_or_values": "Mass percent, with method and sampling conditions", "why_it_matters": "Affects assay interpretation, storage condition and suitability for moisture-sensitive applications." }, { "name": "Impurity profile", "kind": "measurement", "unit_or_values": "mg/kg or mass percent for specified impurities, including nitrite and other salts where relevant", "why_it_matters": "Impurity limits may determine suitability even when the potassium nitrate assay is acceptable." }, { "name": "Declared grade", "kind": "category", "unit_or_values": "Supplier-declared grade linked to a named specification and version", "why_it_matters": "Grade labels require supporting criteria before they can justify an intended use." }, { "name": "Physical form and condition", "kind": "state", "unit_or_values": "Crystalline, powdered, granular or dissolved; free-flowing, caked, wet or visibly contaminated", "why_it_matters": "Determines which handling and measurement assumptions apply." }, { "name": "Particle-size distribution", "kind": "measurement", "unit_or_values": "µm or mm, with distribution, method and sample preparation", "why_it_matters": "Helps assess dust generation, handling behaviour and dissolution performance." }, { "name": "Aqueous solubility", "kind": "measurement", "unit_or_values": "g KNO3 per 100 g water at a stated temperature", "why_it_matters": "Supports assessment of dissolution and crystallization without confusing solvent-based and solution-based concentrations." }, { "name": "Thermal transitions and decomposition", "kind": "measurement", "unit_or_values": "°C, with event type, pressure, atmosphere and measurement method", "why_it_matters": "Separates melting or solid-state transitions from chemical decomposition and prevents unsupported boiling-point assumptions." }, { "name": "Hazard and regulatory designation", "kind": "category", "unit_or_values": "Verified classification, jurisdiction, framework, document version and applicable material form", "why_it_matters": "Determines which substance-specific handling, labelling and transport constraints actually apply." }, { "name": "Lot evidence", "kind": "relation", "unit_or_values": "Links to supplier, batch identifier, certificate of analysis, safety data sheet and sample results", "why_it_matters": "Makes identity and suitability judgments traceable to the material being assessed." } ], "affordances": [ "Reconcile a label or supplier record with analytical evidence for potassium nitrate identity.", "Compare a lot's assay, moisture and impurity results with the specification required for an intended use.", "Assess whether storage conditions and neighbouring materials are compatible with its oxidizing character.", "Interpret solubility and thermal data using their stated conditions and measurement basis.", "Flag wet, contaminated, misidentified or insufficiently documented material for segregation and review.", "Identify the applicable handling, transport or disposal requirements from verified jurisdiction-specific evidence." ] }, "sources": [], "structure": { "bundles": [ { "id": "chemical-identity-and-boundaries", "name": "Chemical identity and boundaries", "description": "Establishes that the represented substance is potassium nitrate and defines its boundary against similar salts and containing products.", "rationale": "Nitrate detection, appearance and common names are insufficient to establish potassium nitrate identity.", "layers": [ { "id": "ionic-identity", "name": "Ionic identity", "description": "Connects the formula KNO3 to evidence for potassium and nitrate.", "findings": [ { "id": "potassium-and-nitrate-confirmation", "name": "Potassium and nitrate confirmation", "description": "Record how both ionic constituents were identified and whether nitrite or alternative counterions were excluded.", "questions": [ { "text": "What evidence establishes potassium nitrate rather than sodium nitrate, potassium nitrite or a mixture of salts?", "kind": "definition", "id": "potassium-and-nitrate-confirmation-q01" }, { "text": "Which analytical method supports identification, and what relevant alternatives can it fail to distinguish?", "kind": "measurement", "id": "potassium-and-nitrate-confirmation-q02" } ] } ] }, { "id": "names-and-material-boundary", "name": "Names and material boundary", "description": "Resolves identifiers, common names and the distinction between substance lots and formulations.", "findings": [ { "id": "identifier-and-product-reconciliation", "name": "Identifier and product reconciliation", "description": "Map verified identifiers to this registry entry while keeping containing products and separately identified substances outside its boundary.", "questions": [ { "text": "Which authoritative records establish the CAS number, EC number, PubChem CID and accepted synonyms for this identity?", "kind": "provenance", "id": "identifier-and-product-reconciliation-q01" }, { "text": "Does the represented material constitute a potassium nitrate lot, or a solution or formulation requiring a separate mixture or product model?", "kind": "boundary", "id": "identifier-and-product-reconciliation-q02" } ] } ] } ] }, { "id": "lot-composition-and-grade", "name": "Lot composition and grade", "description": "Describes how much potassium nitrate a lot contains and what evidence supports its declared grade.", "rationale": "A substance name or high assay does not establish acceptable moisture, impurity limits or fitness for every application.", "layers": [ { "id": "assay-and-impurities", "name": "Assay and impurities", "description": "Separates potassium nitrate content from moisture and independently measured contaminants.", "findings": [ { "id": "composition-on-a-declared-basis", "name": "Composition on a declared basis", "description": "Record assay basis and relevant impurity measurements without treating an unspecified purity percentage as a complete composition.", "questions": [ { "text": "What are the potassium nitrate assay and moisture content, and are results stated on an as-received or dry basis?", "kind": "measurement", "id": "composition-on-a-declared-basis-q01" }, { "text": "Which nitrite, chloride, other-salt or trace-element limits are relevant to this lot's intended use, and what results support compliance?", "kind": "measurement", "id": "composition-on-a-declared-basis-q02" } ] } ] }, { "id": "grade-and-batch-evidence", "name": "Grade and batch evidence", "description": "Links grade claims to specifications and evidence for the actual batch.", "findings": [ { "id": "substantiated-grade-claim", "name": "Substantiated grade claim", "description": "Treat agricultural, technical, reagent or other declared grades as claims requiring a named specification and appropriate lot evidence.", "questions": [ { "text": "Which specification and version define the claimed potassium nitrate grade?", "kind": "definition", "id": "substantiated-grade-claim-q01" }, { "text": "Does the certificate of analysis identify this batch and support every criterion needed for the proposed use?", "kind": "provenance", "id": "substantiated-grade-claim-q02" } ] } ] } ] }, { "id": "physical-state-and-transitions", "name": "Physical state and transitions", "description": "Captures potassium nitrate's observed form and the conditions governing dissolution, crystallization and thermal change.", "rationale": "Physical-property values and handling behaviour require explicit temperature, material form and measurement conditions.", "layers": [ { "id": "solid-form-and-dissolution", "name": "Solid form and dissolution", "description": "Relates particle condition and aqueous solubility to the represented material.", "findings": [ { "id": "conditioned-physical-properties", "name": "Conditioned physical properties", "description": "Record particle form, caking and solubility with sufficient conditions to interpret their practical meaning.", "questions": [ { "text": "What particle-size distribution, moisture condition and degree of caking characterize the potassium nitrate sample?", "kind": "measurement", "id": "conditioned-physical-properties-q01" }, { "text": "What measured solubility applies at the relevant temperature, and is it expressed per mass of water or per mass of solution?", "kind": "measurement", "id": "conditioned-physical-properties-q02" } ] } ] }, { "id": "thermal-behaviour", "name": "Thermal behaviour", "description": "Distinguishes physical transitions from chemical change on heating.", "findings": [ { "id": "transition-and-decomposition-evidence", "name": "Transition and decomposition evidence", "description": "Keep solid-state transition, melting and decomposition observations distinct, including any evidence for nitrite formation or gas evolution.", "questions": [ { "text": "Which reported temperatures correspond to solid-state transitions, melting or decomposition, and under what experimental conditions?", "kind": "measurement", "id": "transition-and-decomposition-evidence-q01" }, { "text": "Does a proposed boiling-point value describe an observed event for potassium nitrate, or should the property remain unset because decomposition intervenes?", "kind": "boundary", "id": "transition-and-decomposition-evidence-q02" } ] } ] } ] }, { "id": "oxidizer-hazards-and-handling", "name": "Oxidizer hazards and handling", "description": "Connects potassium nitrate's oxidizing behaviour and exposure pathways to evidence-based handling constraints.", "rationale": "Oxidizing behaviour creates compatibility concerns that cannot be inferred from whether the substance itself is combustible.", "layers": [ { "id": "oxidizing-behaviour-and-compatibility", "name": "Oxidizing behaviour and compatibility", "description": "Identifies conditions and neighbouring materials that can increase fire or reaction hazards.", "findings": [ { "id": "compatibility-assessment", "name": "Compatibility assessment", "description": "Record verified restrictions concerning combustible materials, reducing agents, contamination and heating for the supplied material.", "questions": [ { "text": "Which incompatibilities and storage conditions are established by the applicable safety data sheet or other authoritative evidence?", "kind": "provenance", "id": "compatibility-assessment-q01" }, { "text": "Do observed contamination, packaging or storage arrangements require segregation or specialist review?", "kind": "action", "id": "compatibility-assessment-q02" } ] } ] }, { "id": "exposure-and-classification", "name": "Exposure and classification", "description": "Records applicable hazard designations and exposure controls without transferring unsupported classifications between jurisdictions.", "findings": [ { "id": "applicable-hazard-record", "name": "Applicable hazard record", "description": "Link hazard statements, exposure information and transport designations to their authority, date and material scope.", "questions": [ { "text": "Which GHS implementation and transport classifications apply to this potassium nitrate material in the relevant jurisdiction?", "kind": "provenance", "id": "applicable-hazard-record-q01" }, { "text": "What exposure controls are supported for its physical form, and are any cited occupational limits substance-specific or general particulate limits?", "kind": "action", "id": "applicable-hazard-record-q02" } ] } ] } ] }, { "id": "use-suitability-and-disposition", "name": "Use suitability and disposition", "description": "Supports decisions about accepting, restricting or disposing of potassium nitrate without absorbing the models of its downstream applications.", "rationale": "Suitability depends on grade, intended use, condition and local requirements; nitrate-containing releases also require contextual assessment.", "layers": [ { "id": "intended-use-qualification", "name": "Intended-use qualification", "description": "Compares substance evidence with requirements supplied by the intended application.", "findings": [ { "id": "lot-to-use-match", "name": "Lot-to-use match", "description": "Record the evidence supporting a lot's suitability for a stated application and identify unresolved acceptance criteria.", "questions": [ { "text": "Which composition, grade and documentation requirements does the intended application impose on potassium nitrate?", "kind": "boundary", "id": "lot-to-use-match-q01" }, { "text": "Can this lot be accepted against those requirements, or which missing or failed criteria require restriction?", "kind": "action", "id": "lot-to-use-match-q02" } ] } ] }, { "id": "release-and-material-disposition", "name": "Release and material disposition", "description": "Connects unwanted or released material to its composition, receiving environment and applicable disposition requirements.", "findings": [ { "id": "nitrate-release-and-waste-assessment", "name": "Nitrate release and waste assessment", "description": "Record the amount and condition of potassium nitrate requiring disposition, including contaminants and the context of any release.", "questions": [ { "text": "What quantity and composition are involved, and could released material reach soil, drainage or surface water?", "kind": "measurement", "id": "nitrate-release-and-waste-assessment-q01" }, { "text": "Which verified local requirements and material-specific guidance determine the appropriate recovery or disposal route?", "kind": "action", "id": "nitrate-release-and-waste-assessment-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This is recall-based information; no sources were consulted.", "Confirm numerical properties against references specifying temperature, purity and measurement basis.", "Check current jurisdiction-specific classifications, food permissions and grade specifications; no occupational exposure limit is asserted here." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Fertilizer grade", "Technical grade", "Reagent grade", "Food grade" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "CAS Registry Number", "value_or_pattern": "7757-79-1", "note": "Identifies potassium nitrate." }, { "scheme": "PubChem CID", "value_or_pattern": "24434", "note": "Compound identifier for potassium nitrate." }, { "scheme": "EC number", "value_or_pattern": "231-818-8", "note": "European chemical inventory identifier." }, { "scheme": "UN dangerous goods number", "value_or_pattern": "UN 1486", "note": "Transport identifier for potassium nitrate." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS): framework for communicating its oxidizing hazard.", "United Nations Recommendations on the Transport of Dangerous Goods, Model Regulations: potassium nitrate is listed as UN 1486, Class 5.1.", "FAO/WHO Joint Expert Committee on Food Additives (JECFA): specifications address potassium nitrate used as a food additive." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Supplies potassium and nitrate nitrogen in fertilizers.", "Serves as an oxidizer in black powder and some pyrotechnic compositions.", "Used in certain food-curing applications subject to applicable restrictions.", "Included in some toothpastes formulated for sensitive teeth.", "Used in nitrate salt mixtures for heat transfer and thermal energy storage." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Molar mass", "typical_range": "101.10", "unit": "g/mol" }, { "quantity": "Melting point", "typical_range": "Approximately 334", "unit": "°C" }, { "quantity": "Solid density near room temperature", "typical_range": "Approximately 2.11", "unit": "g/cm³" }, { "quantity": "Water solubility at 20 °C", "typical_range": "Approximately 31.6", "unit": "g per 100 g water" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Although not itself combustible, it can intensify fire by supporting combustion.", "Contact or contamination with combustible materials or strong reducing agents can create dangerous reactive mixtures.", "Strong heating causes decomposition with oxygen release; a normal boiling point is not an appropriate property to assign.", "Dust may irritate the eyes and respiratory tract.", "Substantial ingestion can cause nitrate toxicity, including methemoglobinemia following conversion to nitrite." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Food-additive identification includes E252 in European usage and INS 252 in the Codex numbering system; identifiers do not establish permission for every food use.", "Permitted food uses, purity requirements and maximum levels depend on jurisdiction.", "Local implementations of GHS and dangerous-goods rules determine applicable labeling and transport obligations." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Sodium nitrate", "difference": "Contains sodium ions rather than potassium ions; its formula is NaNO₃." }, { "name": "Potassium nitrite", "difference": "Contains nitrite, NO₂⁻, rather than nitrate, NO₃⁻; its formula is KNO₂." }, { "name": "Ammonium nitrate", "difference": "Contains ammonium ions rather than potassium ions and has substantially different thermal and hazard behavior." }, { "name": "Niter", "difference": "Names the naturally occurring mineral form of potassium nitrate; the chemical substance also includes manufactured material." }, { "name": "Black powder", "difference": "Is a mixture typically containing potassium nitrate, charcoal and sulfur, rather than the individual compound." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of potassium nitrate this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative identity records and existing Vercy publications must be checked to confirm identifiers, synonyms and whether this concept already has a canonical model?", "Which grade specifications and impurity limits are relevant to the intended applications, especially for nitrite and trace contaminants?", "Which primary or authoritative sources establish solubility, solid-state transitions, melting and decomposition behaviour with clearly stated conditions?", "Which current jurisdiction-specific GHS, transport, occupational exposure and use restrictions apply to the represented form and grade?", "Which evidence distinguishes ordinary caking or moisture uptake from contamination or degradation requiring rejection or further analysis?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 19, "questions": 29 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "chemical substance or material", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a potassium nitrate, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to identify potassium nitrate, assess the condition and suitability of a particular lot, and determine compatible handling and use constraints.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: nitre, Potassium (¹⁵N)nitrate, Potassium (¹⁵N,¹⁸O₃)nitrate, Potassium (¹⁴N)nitrate.", "4 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 78 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a potassium nitrate, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state", "use it up, and then need more of it" ], "howItIsRecognised": [ "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "nitre", "Potassium (¹⁵N)nitrate", "Potassium (¹⁵N,¹⁸O₃)nitrate", "Potassium (¹⁴N)nitrate" ] } ], "standing": "Described in 78 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 4 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one potassium nitrate from another, and a potassium nitrate from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a potassium nitrate sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a potassium nitrate from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a potassium nitrate is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a potassium nitrate is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a potassium nitrate is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a potassium nitrate is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a potassium nitrate is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a potassium nitrate is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a potassium nitrate passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a potassium nitrate between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a potassium nitrate, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a potassium nitrate is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a potassium nitrate and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a potassium nitrate is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a potassium nitrate performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a potassium nitrate.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a potassium nitrate at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "supply-and-consumption", "name": "Supply and consumption", "description": "Quantities, rates and what running out means.", "findings": [ { "id": "consumption-and-stock", "name": "Consumption, stock and replenishment", "description": "How much of a potassium nitrate there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "consumption-and-stock-q02", "text": "Who or what asserted this about the supply of a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "consumption-and-stock-q03", "text": "What may an agent decide or do once the supply of a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "composition-and-identity", "name": "Composition, grade and chemical identity", "description": "What potassium nitrate is made of and how pure the thing in hand is.", "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.", "layers": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Formula, structure and the registry numbers that name it unambiguously.", "findings": [ { "id": "identity-record", "name": "Identity and registry numbers", "description": "What identifies this substance across suppliers and regulators.", "questions": [ { "id": "identity-record-q01", "text": "What formula, structure and registry identifiers name potassium nitrate unambiguously?", "kind": "definition" }, { "id": "identity-record-q02", "text": "Which related substances share a name in common use but not an identifier?", "kind": "boundary" } ] } ] }, { "id": "grade-and-impurities", "name": "Grade, purity and impurities", "description": "The specification a batch meets and what else is in it.", "findings": [ { "id": "specification", "name": "Specification and assay", "description": "How purity is stated and measured, and which impurities matter.", "questions": [ { "id": "specification-q01", "text": "What grades of potassium nitrate exist, how is purity assayed, and which impurities are limited?", "kind": "measurement" }, { "id": "specification-q02", "text": "Which use requires which grade, and what happens when a lower grade is substituted?", "kind": "action" } ] } ] } ] }, { "id": "properties-and-behaviour", "name": "Properties and behaviour", "description": "How potassium nitrate behaves under conditions an agent can measure or change.", "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.", "layers": [ { "id": "physical-constants", "name": "Physical constants", "description": "Values that hold for the pure substance, with their conditions.", "findings": [ { "id": "constants-record", "name": "Constants and conditions", "description": "The quantities worth recording and the state they apply in.", "questions": [ { "id": "constants-record-q01", "text": "What are the defining physical constants of potassium nitrate, in what units and under what conditions?", "kind": "measurement" }, { "id": "constants-record-q02", "text": "Which of these values change with grade or form rather than being fixed?", "kind": "boundary" } ] } ] }, { "id": "stability-and-reactivity", "name": "Stability and reactivity", "description": "What it reacts with, degrades into, and how it is stored.", "findings": [ { "id": "incompatibilities", "name": "Incompatibilities and degradation", "description": "What must not meet it, and what it becomes over time.", "questions": [ { "id": "incompatibilities-q01", "text": "What is potassium nitrate incompatible with, and what does it degrade into under storage?", "kind": "definition" }, { "id": "incompatibilities-q02", "text": "What storage and handling does that require, and who is competent to do it?", "kind": "action" } ] } ] } ] }, { "id": "hazard-and-regulation", "name": "Hazard classification and regulation", "description": "How potassium nitrate can harm, and what the law says about holding and moving it.", "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.", "layers": [ { "id": "hazard-class", "name": "Hazard classification", "description": "Classified hazards, exposure limits and protective measures.", "findings": [ { "id": "classified-hazards", "name": "Classified hazards and limits", "description": "The classification, the scheme it belongs to, and the limits set.", "questions": [ { "id": "classified-hazards-q01", "text": "How is potassium nitrate classified for hazard, under which scheme, and what exposure limits apply?", "kind": "definition" }, { "id": "classified-hazards-q02", "text": "What protection does handling require, and what must an agent refuse to do without it?", "kind": "action" } ] } ] }, { "id": "regulatory-identity", "name": "Regulatory identity and control", "description": "Registration, restriction and transport rules by jurisdiction.", "findings": [ { "id": "controls", "name": "Controls and jurisdiction", "description": "Where it is restricted and what the restriction attaches to.", "questions": [ { "id": "controls-q01", "text": "Which registrations, restrictions or transport rules cover potassium nitrate, and where?", "kind": "provenance" }, { "id": "controls-q02", "text": "Does the control attach to the substance, its concentration, or its intended use?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a potassium nitrate came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a potassium nitrate and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a potassium nitrate is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a potassium nitrate, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a potassium nitrate, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a potassium nitrate is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 9, "layers": 20, "findings": 22, "questions": 60 } } } }