{ "model": { "rank": 4271, "code": "thing-q190227", "model_id": "vr.tr.sodium-carbonate", "name": "sodium carbonate", "purpose": "Enable an agent to identify sodium carbonate, assess its hydration state and grade, and determine whether a particular material is suitable for an intended use.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q190227/", "tier": 2, "score": 77, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 77, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q190227", "url": "https://www.wikidata.org/wiki/Q190227", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T19:51:04Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 26.7, "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: 01a087b8-58e2-7770-b9b3-b22b2fba7ed5\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: sodium carbonate\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: 1001", "usd": 0, "recall": true }, "codex": { "seconds": 64.3, "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: 01a087b8-58e8-7113-9398-8d80d57c3ede\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: sodium carbonate\nRegistry id: vr.tr.sodium-carbonate\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry:" } } }, "metaModel": { "id": "THING-Q190227", "registryId": "vr.tr.sodium-carbonate", "name": "sodium carbonate", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q190227/", "model": { "registry_id": "vr.tr.sodium-carbonate", "name": "sodium carbonate", "purpose": "Enable an agent to identify sodium carbonate, assess its hydration state and grade, and determine whether a particular material is suitable for an intended use.", "definition": "Sodium carbonate is the inorganic sodium salt of carbonic acid, with anhydrous formula Na2CO3, that forms crystalline hydrates and produces alkaline aqueous solutions.", "scope_statement": "This model owns sodium carbonate as a chemical substance and the composition, hydration, physical condition, reactivity, quality and handling constraints of its material instances, while distinguishing those instances from formulated products and manufacturing processes.", "in_scope": [ "Sodium carbonate identity, Na2CO3 composition and form-specific identifiers", "Anhydrous and hydrated forms, including mixed or uncertain hydration states", "Solid material and aqueous sodium carbonate preparations with declared concentration", "Purity, impurities, commercial grade and supporting analytical evidence", "Physical properties and chemical behavior under stated conditions", "Applicable hazard classifications, storage constraints and use eligibility" ], "out_of_scope": [ "Sodium bicarbonate, sodium hydroxide and other separately identified substances", "Complete detergent, cleaning and other formulations containing sodium carbonate", "Manufacturing plants and production routes such as the Solvay process", "Carbonate minerals and ores as geological materials", "Equipment and operating procedures for glassmaking or water treatment", "Jurisdiction-wide chemical regulation beyond its applicability to this substance" ], "distinguishing_features": [ "Establish composition consistent with Na2CO3; a sodium-containing alkaline material alone is insufficient evidence of identity.", "Distinguish carbonate from bicarbonate: Na2CO3 and NaHCO3 have different compositions and acid-neutralizing capacities per unit mass.", "Distinguish sodium carbonate from sodium hydroxide through carbonate-specific analytical evidence rather than pH alone.", "Determine water of crystallization before treating anhydrous material, monohydrate and decahydrate as interchangeable weighed quantities.", "Treat names such as soda ash or washing soda as identification leads requiring confirmation of composition, hydration and additives." ], "characteristics": [ { "name": "Chemical and regulatory identity", "kind": "category", "unit_or_values": "Verified formula; form-specific CAS number, PubChem CID and EC number where applicable", "why_it_matters": "Prevents identifiers for anhydrous material, hydrates or mixtures from being silently interchanged." }, { "name": "Hydration state", "kind": "state", "unit_or_values": "Anhydrous, monohydrate, decahydrate, other verified hydrate, mixed or undetermined", "why_it_matters": "Changes formula mass, storage behavior and the carbonate delivered by a weighed amount." }, { "name": "Sodium carbonate assay", "kind": "measurement", "unit_or_values": "Mass percent with method and as-received, dry or anhydrous-equivalent basis", "why_it_matters": "Supports meaningful purity comparisons and dose calculations." }, { "name": "Water content", "kind": "measurement", "unit_or_values": "Mass percent with method distinguishing, where possible, free moisture from crystallization water", "why_it_matters": "Helps assess hydration changes and reconcile assay results." }, { "name": "Impurity profile", "kind": "measurement", "unit_or_values": "Mass percent or mg/kg of specified impurities, with detection limits", "why_it_matters": "Bicarbonate, chloride, sulfate, insoluble matter and trace contaminants can affect use suitability." }, { "name": "Physical presentation", "kind": "category", "unit_or_values": "Powder, granules, crystals or solution; documented light or dense soda ash designation where relevant", "why_it_matters": "Separates chemical identity from handling, dissolution and bulk-volume differences." }, { "name": "Solution concentration and pH", "kind": "measurement", "unit_or_values": "Concentration in mol/L or mass percent; pH with temperature and preparation conditions", "why_it_matters": "Alkalinity cannot be compared reliably without knowing concentration and measurement conditions." }, { "name": "Condition-dependent physical properties", "kind": "measurement", "unit_or_values": "Solubility in g/100 g water; density in kg/m3; thermal transitions in °C, each with form and conditions", "why_it_matters": "Prevents hydrate transitions, dissolution limits and bulk density from being misrepresented as universal constants." }, { "name": "Grade and lot evidence", "kind": "relation", "unit_or_values": "Material lot linked to supplier specification, certificate of analysis and applicable use standard", "why_it_matters": "A grade label alone does not establish compliance or fitness for a particular application." }, { "name": "Hazard and exposure status", "kind": "category", "unit_or_values": "Applicable classification, SDS revision, jurisdiction and substance-specific or general dust exposure limits with units", "why_it_matters": "Handling decisions depend on the supplied form and current applicable evidence." } ], "affordances": [ "Verify whether a labeled material is sodium carbonate and establish its hydration state.", "Calculate anhydrous-equivalent sodium carbonate content from mass, assay and hydration evidence.", "Assess whether a lot meets the purity and contaminant requirements of a specified application.", "Evaluate dissolution, acid neutralization or carbonate precipitation behavior under declared conditions.", "Identify storage-related changes that require resampling or requalification.", "Retrieve applicable handling and exposure controls for the actual supplied material." ] }, "sources": [], "structure": { "bundles": [ { "id": "identity-and-hydration", "name": "Identity and hydration", "description": "Establish which sodium carbonate material is present and how its chemical identity is represented.", "rationale": "Trade names and hydration differences can conceal materially different compositions per unit mass.", "layers": [ { "id": "carbonate-identity", "name": "Carbonate identity", "description": "Distinguish sodium carbonate from neighboring sodium compounds and formulated products.", "findings": [ { "id": "identity-evidence", "name": "Identity evidence", "description": "Record the evidence supporting Na2CO3 identity and the exact scope of assigned identifiers.", "questions": [ { "text": "What analytical or traceable supplier evidence identifies sodium carbonate rather than sodium bicarbonate, sodium hydroxide or a mixture?", "kind": "definition", "id": "identity-evidence-q01" }, { "text": "Which CAS, PubChem and EC records apply to the identified form, and which source verifies each mapping?", "kind": "provenance", "id": "identity-evidence-q02" } ] } ] }, { "id": "hydrate-resolution", "name": "Hydrate resolution", "description": "Resolve crystallization water and its consequences for material equivalence.", "findings": [ { "id": "hydrate-assignment", "name": "Hydrate assignment", "description": "Record a supported hydration assignment, including mixtures or unresolved states.", "questions": [ { "text": "Is this material anhydrous, monohydrate, decahydrate or another verified state, and how was that established?", "kind": "measurement", "id": "hydrate-assignment-q01" }, { "text": "Does the stated formula mass or assay basis include crystallization water?", "kind": "boundary", "id": "hydrate-assignment-q02" } ] } ] } ] }, { "id": "composition-and-grade", "name": "Composition and grade", "description": "Establish carbonate content, contaminants and evidence supporting a declared grade.", "rationale": "Sodium carbonate identity alone does not establish suitability for analytical, industrial or food-related applications.", "layers": [ { "id": "assay-and-impurities", "name": "Assay and impurities", "description": "Make composition measurements comparable and distinguish carbonate assay from broader alkalinity measurements.", "findings": [ { "id": "composition-basis", "name": "Composition basis", "description": "Record assay methods, reporting bases and impurities relevant to the intended use.", "questions": [ { "text": "What is the sodium carbonate assay on an as-received and anhydrous-equivalent basis, and does the method distinguish bicarbonate or hydroxide contributions?", "kind": "measurement", "id": "composition-basis-q01" }, { "text": "Which impurities were measured, with what detection limits, and which remain uncharacterized?", "kind": "measurement", "id": "composition-basis-q02" } ] } ] }, { "id": "grade-qualification", "name": "Grade qualification", "description": "Connect a grade claim to a particular lot, specification and intended application.", "findings": [ { "id": "lot-use-eligibility", "name": "Lot use eligibility", "description": "Assess grade claims using documented acceptance criteria.", "questions": [ { "text": "Which specification and certificate of analysis support the grade claimed for this lot?", "kind": "provenance", "id": "lot-use-eligibility-q01" }, { "text": "Does the lot satisfy the intended application's carbonate assay and contaminant limits, or is further testing required?", "kind": "action", "id": "lot-use-eligibility-q02" } ] } ] } ] }, { "id": "physical-state-and-storage", "name": "Physical state and storage", "description": "Describe presentation, condition-dependent properties and changes during storage.", "rationale": "Hydration, moisture and particle form affect dosing, dissolution and handling even when substance identity remains the same.", "layers": [ { "id": "presentation-and-properties", "name": "Presentation and properties", "description": "Characterize the actual solid or solution without conflating bulk properties with intrinsic properties.", "findings": [ { "id": "form-specific-properties", "name": "Form-specific properties", "description": "Associate physical measurements with hydration state, sample preparation and conditions.", "questions": [ { "text": "What are the particle size, bulk density and physical presentation, or concentration and temperature if supplied as a solution?", "kind": "measurement", "id": "form-specific-properties-q01" }, { "text": "Which solubility and thermal-transition data apply to this form, and do reported transitions represent dehydration, melting or decomposition?", "kind": "boundary", "id": "form-specific-properties-q02" } ] } ] }, { "id": "storage-evolution", "name": "Storage evolution", "description": "Track changes that may invalidate the original composition or handling assumptions.", "findings": [ { "id": "condition-requalification", "name": "Condition requalification", "description": "Assess moisture exchange, hydration changes, caking and exposure history.", "questions": [ { "text": "What temperature, humidity, packaging and air-exposure history could have changed water content, hydration or carbonate composition?", "kind": "provenance", "id": "condition-requalification-q01" }, { "text": "What observed change or storage excursion requires resampling before accurate weighing or use?", "kind": "action", "id": "condition-requalification-q02" } ] } ] } ] }, { "id": "aqueous-behavior-and-use", "name": "Aqueous behavior and use", "description": "Connect dissolution and carbonate chemistry to application-specific decisions.", "rationale": "Useful behavior depends on concentration, water composition and reaction partners rather than the substance name alone.", "layers": [ { "id": "dissolution-and-alkalinity", "name": "Dissolution and alkalinity", "description": "Characterize prepared solutions and the basis of their alkalinity.", "findings": [ { "id": "solution-state", "name": "Solution state", "description": "Record concentration, pH and conditions affecting dissolved carbonate species.", "questions": [ { "text": "What concentration and pH are measured at the stated temperature, and is undissolved material present?", "kind": "measurement", "id": "solution-state-q01" }, { "text": "How have water composition and carbon dioxide exposure affected the solution's carbonate-bicarbonate balance?", "kind": "measurement", "id": "solution-state-q02" } ] } ] }, { "id": "reaction-and-dose", "name": "Reaction and dose", "description": "Evaluate carbonate delivery, acid neutralization and precipitation in a specified use.", "findings": [ { "id": "application-calculation", "name": "Application calculation", "description": "Ground use calculations in verified composition and a defined chemical endpoint.", "questions": [ { "text": "What mass supplies the required carbonate or acid-neutralizing capacity after correcting for assay, hydration and the specified endpoint?", "kind": "action", "id": "application-calculation-q01" }, { "text": "Will the intended contact produce carbon dioxide, precipitates or other changes that the receiving process must accommodate?", "kind": "action", "id": "application-calculation-q02" } ] } ] } ] }, { "id": "hazards-and-applicable-controls", "name": "Hazards and applicable controls", "description": "Connect the actual sodium carbonate material to supported hazard, exposure and compatibility decisions.", "rationale": "Dust, alkaline solutions and reaction conditions require controls grounded in the supplied form and applicable rules.", "layers": [ { "id": "classification-and-exposure", "name": "Classification and exposure", "description": "Establish applicable hazard classifications and exposure guidance from current sources.", "findings": [ { "id": "hazard-evidence", "name": "Hazard evidence", "description": "Record classifications and limits with their material scope, jurisdiction and revision.", "questions": [ { "text": "What current SDS and authoritative classification records apply to this hydrate, grade or solution concentration?", "kind": "provenance", "id": "hazard-evidence-q01" }, { "text": "Are applicable exposure limits specific to sodium carbonate or general particulate limits, and what averaging period and particle fraction do they cover?", "kind": "boundary", "id": "hazard-evidence-q02" } ] } ] }, { "id": "compatibility-and-handling", "name": "Compatibility and handling", "description": "Determine controls for the intended contact, transfer and storage conditions.", "findings": [ { "id": "operation-controls", "name": "Operation controls", "description": "Relate documented incompatibilities and exposure routes to the proposed operation.", "questions": [ { "text": "Which intended contacts require evaluation for acid-driven gas release, heat generation or equipment-material compatibility?", "kind": "action", "id": "operation-controls-q01" }, { "text": "Which documented controls address dust or splashes during this operation, and what source supports the selected spill and disposal procedure?", "kind": "action", "id": "operation-controls-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 recalled knowledge, not a researched account; identifiers and specifications should be verified before publication.", "Physical properties depend on hydration state, temperature and concentration; crystal density must not be confused with commercial bulk density.", "Check current jurisdiction-specific hazard classifications, exposure limits and food-use requirements; no numerical exposure limit or boiling point is asserted here." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of sodium carbonate 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": [ "Anhydrous sodium carbonate", "Sodium carbonate monohydrate", "Sodium carbonate heptahydrate", "Sodium carbonate decahydrate", "Light soda ash: a commercial anhydrous form with lower bulk density", "Dense soda ash: a commercial anhydrous form with higher bulk density" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of sodium carbonate 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": "497-19-8", "note": "Anhydrous sodium carbonate; hydrates have separate registry numbers." }, { "scheme": "EC number", "value_or_pattern": "207-838-8", "note": "European substance identifier for sodium carbonate." }, { "scheme": "PubChem CID", "value_or_pattern": "10340", "note": "Compound identifier for sodium carbonate." }, { "scheme": "European food additive E number", "value_or_pattern": "E 500(i)", "note": "Sodium carbonate; food use requires compliance with applicable purity and use conditions." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of sodium carbonate 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": [ "European Union CLP Regulation, issued by the European Parliament and Council, governs chemical classification, labelling and packaging.", "European Union REACH Regulation, issued by the European Parliament and Council, governs applicable chemical registration and supply-chain obligations.", "Food Chemicals Codex, published by the United States Pharmacopeia, provides food-ingredient identity and purity specifications." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of sodium carbonate 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 sodium oxide as a flux in soda-lime glass manufacture.", "Provides alkalinity and builder action in detergents and cleaning formulations.", "Softens water by precipitating calcium as calcium carbonate.", "Adjusts pH and neutralizes acids in industrial processing.", "Serves as an acidity regulator in food when supplied in a compliant food grade." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of sodium carbonate 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 of anhydrous Na2CO3", "typical_range": "105.99", "unit": "g/mol" }, { "quantity": "Melting point of anhydrous sodium carbonate", "typical_range": "Approximately 851", "unit": "°C" }, { "quantity": "Crystal density of anhydrous sodium carbonate near room temperature", "typical_range": "Approximately 2.54", "unit": "g/cm³" }, { "quantity": "pH of an approximately 1% aqueous solution near room temperature", "typical_range": "Approximately 11-12", "unit": "dimensionless" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of sodium carbonate 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": [ "Dust and concentrated solutions can cause substantial eye irritation.", "Airborne dust can irritate the respiratory tract; prolonged skin contact can cause irritation.", "Reaction with acids releases carbon dioxide, which can cause foaming and pressure buildup in closed equipment.", "Moisture uptake and changes in hydration can cause caking and alter the active sodium carbonate content per unit mass.", "Technical grades can contain impurities that make them unsuitable for food, pharmaceutical or analytical applications." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of sodium carbonate 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 labelling may use E 500(i) in Europe and INS 500(i) in systems using Codex numbering.", "Commercial terms such as washing soda and soda ash vary in usage; hydration state and grade should be specified explicitly." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of sodium carbonate 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 bicarbonate", "difference": "NaHCO3 contains hydrogen carbonate rather than carbonate and produces less alkaline solutions under comparable conditions." }, { "name": "Sodium hydroxide", "difference": "NaOH supplies hydroxide directly and is a much more caustic alkali." }, { "name": "Sodium percarbonate", "difference": "An addition compound of sodium carbonate and hydrogen peroxide that releases peroxide in water and functions as an oxygen bleach." }, { "name": "Trona", "difference": "A mineral with composition Na3H(CO3)2·2H2O containing both carbonate and hydrogen carbonate, used as a raw material for soda ash." }, { "name": "Potassium carbonate", "difference": "K2CO3 contains potassium rather than sodium, giving different physical properties and application requirements." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of sodium carbonate this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the registry intend sodium carbonate to encompass its hydrates under this entry, and how should form-specific identifiers be linked without creating duplicate substance models?", "Which authoritative sources establish the identifier mappings and physical-property data for each included hydration state?", "Which assay methods reliably distinguish carbonate content from bicarbonate or hydroxide contributions in relevant commercial grades?", "Which current jurisdiction-specific classifications, exposure limits and use standards apply to the intended deployment?", "What evidence defines storage conditions and requalification thresholds for hydration changes, moisture uptake and carbon dioxide exposure?" ], "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 carbonate, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to identify sodium carbonate, assess its hydration state and grade, and determine whether a particular material is suitable for an intended use.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Described in 77 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 carbonate, 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 77 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 carbonate from another, and a sodium carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a sodium carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a sodium carbonate performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a sodium carbonate at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate 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 carbonate 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 carbonate 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 carbonate, 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 carbonate 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 carbonate 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 carbonate 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 carbonate, 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 carbonate 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 carbonate and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a sodium carbonate, 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 carbonate, 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 carbonate 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 carbonate is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a sodium carbonate, 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 carbonate, 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 carbonate 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 } } } }