{ "model": { "rank": 3442, "code": "thing-q102769", "model_id": "vr.tr.sodium-hydroxide", "name": "sodium hydroxide", "purpose": "Enable an AI agent to identify sodium hydroxide, assess the composition and condition of a particular supply, and determine which uses or handling decisions require further evidence.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q102769/", "tier": 2, "score": 86, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 86, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q102769", "url": "https://www.wikidata.org/wiki/Q102769", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:45:49Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 28.3, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c53-f988-7c30-a443-81fa3fda7a25\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: sodium hydroxide\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 546 things:\n# Batch 003: 1001", "usd": 0, "recall": true }, "codex": { "seconds": 76.6, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c53-f99b-7220-8808-309de511aba2\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: sodium hydroxide\nRegistry id: vr.tr.sodium-hydroxide\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry:" } } }, "metaModel": { "id": "THING-Q102769", "registryId": "vr.tr.sodium-hydroxide", "name": "sodium hydroxide", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q102769/", "model": { "registry_id": "vr.tr.sodium-hydroxide", "name": "sodium hydroxide", "purpose": "Enable an AI agent to identify sodium hydroxide, assess the composition and condition of a particular supply, and determine which uses or handling decisions require further evidence.", "definition": "Sodium hydroxide (NaOH) is an inorganic ionic compound composed of sodium cations and hydroxide anions, forming a strongly alkaline, corrosive solution when dissolved in water.", "scope_statement": "This model owns sodium hydroxide as the chemical substance NaOH, including the composition, physical form, condition and use constraints of solid supplies and aqueous solutions explicitly identified as sodium hydroxide.", "in_scope": [ "Chemical identity of sodium hydroxide and its distinction from other alkaline substances", "Solid forms and aqueous solutions, with explicit concentration and composition", "Grade, assay, impurities and evidence connecting a supply to its declared specification", "Physical condition, moisture uptake and changes caused by exposure to carbon dioxide", "Reactivity, compatibility and evidence required for handling or use decisions" ], "out_of_scope": [ "Sodium metal, potassium hydroxide, sodium carbonate and other separately identified substances", "Formulated cleaners whose identity and performance depend on ingredients beyond sodium hydroxide", "Chlor-alkali plants and other manufacturing equipment", "Complete soapmaking, pulping, water-treatment or chemical-production processes", "Container engineering, transport operations and jurisdiction-specific compliance systems", "Medical assessment and treatment of chemical exposure" ], "distinguishing_features": [ "Identity evidence specifies NaOH, rather than KOH, Na2CO3 or metallic sodium; an alkaline appearance or product name alone is insufficient.", "Composition evidence identifies sodium and hydroxide as the relevant constituents; pH alone cannot distinguish sodium hydroxide from other bases.", "An aqueous solution retains an explicit NaOH concentration and basis, distinguishing it from solid sodium hydroxide and from an unspecified alkaline liquid.", "Assay evidence distinguishes sodium hydroxide content from carbonate or other contributions to measured alkalinity.", "A formulated product containing NaOH is distinguished from a sodium hydroxide supply by its additional ingredients and declared product identity." ], "characteristics": [ { "name": "Chemical identity", "kind": "category", "unit_or_values": "NaOH; identity confirmed, declared or unresolved", "why_it_matters": "Prevents substitution based only on common names, appearance or alkalinity." }, { "name": "Supply form", "kind": "category", "unit_or_values": "Pellets, flakes, beads, other solid form or aqueous solution", "why_it_matters": "Affects sampling, transfer, dissolution and exposure assessment." }, { "name": "NaOH content", "kind": "measurement", "unit_or_values": "Mass fraction in %, mol/kg or mol/L, with concentration basis and applicable temperature", "why_it_matters": "Supports quantity calculations and prevents confusion between unlike concentration conventions." }, { "name": "Water content", "kind": "measurement", "unit_or_values": "Mass fraction in %, with method and sampling date", "why_it_matters": "Distinguishes solution composition and moisture-affected solids from a nominal dry-substance quantity." }, { "name": "Carbonate content", "kind": "measurement", "unit_or_values": "Mass fraction in % or mg/kg, explicitly stating whether reported as Na2CO3 or another basis", "why_it_matters": "Helps assess composition changes and interpret alkalinity measurements." }, { "name": "Grade and specification", "kind": "relation", "unit_or_values": "Link to a named supplier specification or applicable standard and revision", "why_it_matters": "A grade label needs defined acceptance criteria before it can support a use decision." }, { "name": "Temperature", "kind": "measurement", "unit_or_values": "°C at a stated time and location", "why_it_matters": "Provides context for physical state, concentration-related properties and thermal handling constraints." }, { "name": "Observed physical condition", "kind": "state", "unit_or_values": "Free-flowing solid, caked solid, liquid, liquid with crystals, visibly contaminated or unassessed", "why_it_matters": "Flags changes requiring investigation before relying on nominal composition or transfer behavior." }, { "name": "Assay provenance", "kind": "relation", "unit_or_values": "Linked lot, sample, method, laboratory, result date and certificate", "why_it_matters": "Connects composition claims to the actual material under consideration." }, { "name": "Contact-material compatibility", "kind": "relation", "unit_or_values": "Material-specific assessment linked to NaOH concentration, temperature and contact conditions", "why_it_matters": "Prevents a compatibility judgment from being transferred to conditions it does not cover." } ], "affordances": [ "Resolve whether a labelled material is sodium hydroxide, a different alkali or a formulated mixture.", "Compare a lot's measured NaOH and impurity contents with the requirements of an intended use.", "Calculate contained NaOH from supply quantity and verified concentration using a consistent basis.", "Flag possible moisture uptake, carbonation or crystallization for sampling and reassessment.", "Screen proposed storage, transfer or process contacts against documented compatibility evidence.", "Determine whether a proposed dilution or dosing operation has sufficient composition, thermal and procedural evidence to proceed." ] }, "sources": [], "structure": { "bundles": [ { "id": "chemical-identity-and-boundaries", "name": "Chemical identity and boundaries", "description": "Establishes what counts as sodium hydroxide and separates the substance from related alkalis and formulated products.", "rationale": "Common alkali names and alkaline behavior do not establish NaOH identity or define the limits of this registry entry.", "layers": [ { "id": "identity-evidence", "name": "Identity evidence", "description": "Connects the declared NaOH identity to labels, documentation and analytical evidence.", "findings": [ { "id": "establish-naoh-identity", "name": "Establish NaOH identity", "description": "Record the identity claim and its evidence separately; appearance and pH are insufficient identity evidence on their own.", "questions": [ { "text": "What evidence identifies the material as NaOH rather than potassium hydroxide, sodium carbonate or an unspecified alkali?", "kind": "definition", "id": "establish-naoh-identity-q01" }, { "text": "Which label, supplier document or analytical result supports that identity for this supply?", "kind": "provenance", "id": "establish-naoh-identity-q02" } ] } ] }, { "id": "substance-solution-and-product", "name": "Substance, solution and product", "description": "Distinguishes the registered substance from its supplied forms and from products containing it.", "findings": [ { "id": "classify-supply-boundary", "name": "Classify the supply boundary", "description": "Represent solid NaOH and identified aqueous NaOH solutions within scope while linking formulated products to their own models.", "questions": [ { "text": "Is this supply solid sodium hydroxide, an aqueous sodium hydroxide solution or a formulation containing sodium hydroxide?", "kind": "boundary", "id": "classify-supply-boundary-q01" }, { "text": "Do additional ingredients require a separate product model, with NaOH represented as a constituent?", "kind": "boundary", "id": "classify-supply-boundary-q02" } ] } ] } ] }, { "id": "composition-and-grade", "name": "Composition and grade", "description": "Captures NaOH quantity, water, impurities and specification evidence.", "rationale": "Nominal strength or grade cannot establish how much usable NaOH a supply contains or whether its impurities are acceptable.", "layers": [ { "id": "strength-and-assay", "name": "Strength and assay", "description": "Makes concentration and analytical interpretation explicit.", "findings": [ { "id": "quantify-naoh-content", "name": "Quantify NaOH content", "description": "Record the concentration basis and distinguish NaOH-specific content from total alkalinity.", "questions": [ { "text": "What is the measured NaOH content, on which mass or volume basis, and with what uncertainty?", "kind": "measurement", "id": "quantify-naoh-content-q01" }, { "text": "How does the assay account for carbonate or other substances that contribute to alkalinity?", "kind": "measurement", "id": "quantify-naoh-content-q02" } ] } ] }, { "id": "impurities-and-acceptance", "name": "Impurities and acceptance", "description": "Relates relevant contaminants and grade claims to an intended use.", "findings": [ { "id": "verify-grade-requirements", "name": "Verify grade requirements", "description": "Treat grade as a documented set of limits, with lot-specific evidence where required.", "questions": [ { "text": "Which specification defines the declared grade and its limits for carbonate, chloride, metals or other relevant impurities?", "kind": "provenance", "id": "verify-grade-requirements-q01" }, { "text": "Which measured results establish that this lot meets the intended use's NaOH and impurity requirements?", "kind": "measurement", "id": "verify-grade-requirements-q02" } ] } ] } ] }, { "id": "physical-form-and-condition", "name": "Physical form and condition", "description": "Represents the supplied form and condition changes associated with temperature and atmospheric exposure.", "rationale": "NaOH quantity and handling behavior cannot be inferred reliably from an original label after the material's condition changes.", "layers": [ { "id": "form-and-phase", "name": "Form and phase", "description": "Records solid morphology or solution state under observed conditions.", "findings": [ { "id": "assess-current-physical-state", "name": "Assess current physical state", "description": "Associate observations such as caking or crystals with composition and temperature rather than assuming a cause.", "questions": [ { "text": "What solid form or liquid-and-solid condition is observed at the recorded temperature?", "kind": "measurement", "id": "assess-current-physical-state-q01" }, { "text": "Does observed caking or crystallization require reassessment before sampling, weighing or transfer?", "kind": "action", "id": "assess-current-physical-state-q02" } ] } ] }, { "id": "atmospheric-exposure", "name": "Atmospheric exposure", "description": "Tracks exposure relevant to moisture uptake and reaction with carbon dioxide.", "findings": [ { "id": "assess-composition-drift", "name": "Assess composition drift", "description": "Use exposure history to trigger verification of water and carbonate content, without treating exposure alone as a quantitative assay.", "questions": [ { "text": "What opening, closure and air-exposure history is known for this supply?", "kind": "provenance", "id": "assess-composition-drift-q01" }, { "text": "What measurements establish whether water uptake or carbonation has changed the usable NaOH content?", "kind": "measurement", "id": "assess-composition-drift-q02" } ] } ] } ] }, { "id": "reactivity-and-contact-constraints", "name": "Reactivity and contact constraints", "description": "Organizes evidence about heat generation, chemical incompatibilities and exposure hazards.", "rationale": "Decisions involving NaOH depend on the particular concentration, temperature and substances or materials contacted.", "layers": [ { "id": "dissolution-and-neutralization", "name": "Dissolution and neutralization", "description": "Makes thermal assessment an explicit requirement for proposed dissolution, dilution and acid contact.", "findings": [ { "id": "evaluate-thermal-operation", "name": "Evaluate the thermal operation", "description": "Link a proposed operation to evidence addressing heat release and temperature limits rather than treating it as simple volume mixing.", "questions": [ { "text": "What quantities, NaOH concentrations and initial temperatures define the proposed dissolution, dilution or neutralization?", "kind": "measurement", "id": "evaluate-thermal-operation-q01" }, { "text": "Which validated procedure and thermal assessment support the proposed operation?", "kind": "action", "id": "evaluate-thermal-operation-q02" } ] } ] }, { "id": "chemical-and-material-contact", "name": "Chemical and material contact", "description": "Links contact hazards to the actual material, concentration and operating conditions.", "findings": [ { "id": "verify-contact-constraints", "name": "Verify contact constraints", "description": "Require condition-specific evidence for wetted materials and exposure controls, including relevant metal-reaction hazards.", "questions": [ { "text": "What compatibility evidence covers each proposed contact material at the actual NaOH concentration and temperature?", "kind": "provenance", "id": "verify-contact-constraints-q01" }, { "text": "Which current safety information and task assessment govern corrosive exposure, splashing and any gas-generating contact reactions?", "kind": "action", "id": "verify-contact-constraints-q02" } ] } ] } ] }, { "id": "use-readiness-and-traceability", "name": "Use readiness and traceability", "description": "Connects composition and condition evidence to a specific use decision over the supply's history.", "rationale": "The same NaOH supply may be acceptable for one application and unsuitable for another, particularly after opening or dilution.", "layers": [ { "id": "application-fit", "name": "Application fit", "description": "Relates required NaOH function to concentration, impurity and evidence requirements.", "findings": [ { "id": "assess-fitness-for-use", "name": "Assess fitness for use", "description": "Evaluate suitability for the stated application without extending the model into the complete downstream process.", "questions": [ { "text": "What NaOH concentration, grade and impurity limits does the intended application require?", "kind": "boundary", "id": "assess-fitness-for-use-q01" }, { "text": "Does the available composition and condition evidence support use, or is further testing required?", "kind": "action", "id": "assess-fitness-for-use-q02" } ] } ] }, { "id": "lot-and-preparation-history", "name": "Lot and preparation history", "description": "Preserves the connection between original supply evidence and material subsequently opened, transferred or diluted.", "findings": [ { "id": "maintain-composition-traceability", "name": "Maintain composition traceability", "description": "Track preparation and sampling events that determine whether an earlier NaOH assay still represents the current material.", "questions": [ { "text": "Which source lot, water addition and preparation records establish the provenance of this NaOH solution or transferred solid?", "kind": "provenance", "id": "maintain-composition-traceability-q01" }, { "text": "After dilution, transfer or prolonged opening, what evidence is required before retaining the earlier concentration or grade claim?", "kind": "action", "id": "maintain-composition-traceability-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 describes the chemical substance generally; no particular grade, concentration or commercial product is specified.", "Physical-property values are approximate recall values for pure anhydrous material unless otherwise stated.", "Applicable specification editions, transport provisions and food-use restrictions require verification for the intended jurisdiction and product." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of sodium hydroxide 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": [ "Solid sodium hydroxide, commonly supplied as pellets, flakes or beads", "Aqueous sodium hydroxide solutions", "Technical-grade sodium hydroxide", "Reagent-grade sodium hydroxide", "Food-grade sodium hydroxide" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of sodium hydroxide 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": "1310-73-2", "note": "Identifies sodium hydroxide." }, { "scheme": "Chemical formula", "value_or_pattern": "NaOH", "note": "Formula unit of the ionic compound." }, { "scheme": "UN dangerous goods number", "value_or_pattern": "UN 1823; UN 1824", "note": "UN 1823 identifies solid sodium hydroxide; UN 1824 identifies sodium hydroxide solution." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of sodium hydroxide 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": [ "Food Chemicals Codex (FCC), published by the United States Pharmacopeia, includes sodium hydroxide purity specifications.", "United Nations Recommendations on the Transport of Dangerous Goods classify solid sodium hydroxide and its solution as Class 8 corrosive dangerous goods." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of sodium hydroxide 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": [ "Manufacture of soaps by saponification of fats and oils", "Chemical pulping of wood in the kraft process", "Extraction of alumina from bauxite in the Bayer process", "Neutralization of acids and adjustment of process-water pH", "Alkaline cleaning and removal of fatty deposits" ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of sodium hydroxide 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": "Approximately 40.00", "unit": "g/mol" }, { "quantity": "Melting point of pure anhydrous material", "typical_range": "Approximately 318", "unit": "°C" }, { "quantity": "Density of anhydrous solid near room temperature", "typical_range": "Approximately 2.13", "unit": "g/cm³" }, { "quantity": "Common bulk commercial solution concentration", "typical_range": "Approximately 50", "unit": "% by mass" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of sodium hydroxide 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": [ "Causes severe chemical burns and serious eye damage; airborne dust or mist can damage respiratory tissues.", "Dissolution in water and dilution of concentrated solutions release substantial heat, creating risks of localized boiling and splashing.", "Reacts strongly and exothermically with acids.", "Attacks metals including aluminium and zinc, potentially releasing flammable hydrogen gas.", "Absorbs moisture and carbon dioxide from air, causing deliquescence and carbonate contamination that changes composition and analytical strength." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of sodium hydroxide 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": [ "Caustic soda is a widespread industrial name; lye may mean sodium hydroxide, potassium hydroxide or their solutions depending on context.", "Food-use permissions, purity requirements and product labelling depend on jurisdiction and intended application." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of sodium hydroxide 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": "Potassium hydroxide", "difference": "Contains potassium rather than sodium cations; its formula is KOH." }, { "name": "Sodium carbonate", "difference": "Contains carbonate rather than hydroxide anions; its formula is Na₂CO₃ and its aqueous solutions are less strongly alkaline at comparable molar concentrations." }, { "name": "Sodium bicarbonate", "difference": "Has formula NaHCO₃ and produces mildly alkaline solutions rather than the strongly alkaline solutions characteristic of sodium hydroxide." }, { "name": "Sodium hydroxide solution", "difference": "A mixture of sodium hydroxide and water with concentration-dependent properties, rather than the pure compound." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of sodium hydroxide this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does an existing Vercy world model already own sodium hydroxide, requiring this registry entry to link to it?", "Which authoritative specifications and analytical methods should govern grade, NaOH assay and carbonate correction for the intended applications?", "Which validated concentration-temperature property data are needed to interpret crystallization, density and solution strength?", "Which compatibility references cover the actual container, seal and transfer materials across the intended concentrations and temperatures?", "What evidence-based retesting criteria should apply after opening, moisture exposure, suspected carbonation or preparation of a new solution?" ], "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 sodium hydroxide, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to identify sodium hydroxide, assess the composition and condition of a particular supply, and determine which uses or handling decisions require further evidence.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Described in 86 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 sodium hydroxide, 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": [], "standing": "Described in 86 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one sodium hydroxide from another, and a sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a sodium hydroxide performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a sodium hydroxide at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 sodium hydroxide is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a sodium hydroxide, 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 sodium hydroxide, 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 sodium hydroxide 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 } } } }