carbonate
Enable an AI agent to recognise an inorganic carbonate material or carbonate-bearing solution, assess its present state, and decide which handling, separation or conversion actions are justified.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex
Purpose and description
Enable an AI agent to recognise an inorganic carbonate material or carbonate-bearing solution, assess its present state, and decide which handling, separation or conversion actions are justified.
It can be Select and interpret complementary tests for carbonate identity and solid-phase composition.; Quantify carbonate inventory on an explicit analytical and material basis.; Estimate dissolved carbonate speciation and phase saturation under stated conditions.; Assess controlled dissolution, precipitation or recovery options for the identified composition.; Evaluate acid or heat treatment against expected products, gas release and constituent-specific constraints.; Detect changes caused by moisture, solution contact or carbon dioxide exchange..
Distinguishing features
Identification must establish CO3²⁻ rather than infer carbonate solely from elemental carbon and oxygen.
Carbonate and bicarbonate are distinct species: a solution's alkalinity or total inorganic carbon alone does not establish its carbonate concentration.
Inorganic carbonates must be distinguished from organic carbonate esters by chemical bonding and composition.
Acid-induced carbon dioxide evolution can support identification, but does not alone distinguish carbonate from bicarbonate or establish the carbonate phase.
A carbonate-bearing mixture must be distinguished from an identified carbonate compound by phase evidence and constituent proportions.
Scope
+ Identification of carbonate and its associated cations or host phases
+ Carbonate content, composition and distribution within a specified material
+ Solid-phase identity, hydration and physical condition
+ Dissolved carbonate speciation and exchange with solids and carbon dioxide
+ Conditions and evidence governing carbonate handling, dissolution, precipitation and conversion
- Organic carbonate esters and polycarbonate polymers
- Bicarbonate compounds as independently identified materials
- Whole-rock classification and geological history of limestone, dolostone or marble
- Complete water-quality assessment beyond carbonate-related chemistry
- Carbon dioxide storage systems and whole-system carbon accounting
Characteristics
- Material interpretation
- identified carbonate compound | carbonate-bearing mixture | dissolved carbonate species | unresolved Determines which identity claims and subsequent actions are meaningful.
- Associated cations and composition
- identified cations, stoichiometric ratios and links to constituent models Carbonate salts differ substantially in solubility, reactivity and constituent-specific hazards.
- Carbonate quantity
- mol/kg, mol/L or mass fraction, explicitly identifying CO3²⁻, compound mass or equivalent reporting basis Prevents incompatible measurements from being treated as interchangeable carbonate inventories.
- Solid-phase identity
- identified mineral or synthetic phase, polymorph, hydrate, amorphous fraction or unresolved phase Bulk chemical composition alone may not establish solid identity or behaviour.
- Water association
- structural hydration, adsorbed moisture, free liquid and evidence for each Distinguishes hydration changes from simple wetting and supports correct mass interpretation.
- Solution conditions
- pH, temperature in °C, ionic strength in mol/kg and applicable gas conditions Provides the conditions needed to interpret carbonate speciation and equilibrium calculations.
- Dissolved inorganic carbon distribution
- mol/L or mole fractions for carbonate, bicarbonate and dissolved CO2/H2CO3 under a stated convention Separates actual carbonate abundance from the total dissolved inorganic carbon pool.
- Saturation relative to a specified carbonate phase
- dimensionless saturation index with named phase, activity model and temperature Supports assessment of dissolution or precipitation tendency without assuming the reaction will occur rapidly.
- Reactive accessibility
- particle-size distribution, exposed surface, coatings, agglomeration and access by liquid or gas Helps explain why observed reaction rates differ between compositionally similar materials.
- Constituent-specific action constraints
- links to evidence for cation hazards, impurities, compatible equipment and intended-use limits A carbonate label alone does not establish safe handling or suitability.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.carbonate
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 10 layers · 10 findings · 20 questions.
Carbonate identity Establishes what carbonate denotes in the particular material and what evidence supports that interpretation.
The registry name does not distinguish an ion, a compound, a mineral phase or a mixed material.
Chemical identity
Separates inorganic carbonate from chemically related species and naming ambiguities.
Carbonate assignment
Record the evidence identifying inorganic carbonate and the alternatives that remain plausible.
- What analytical evidence establishes CO3²⁻ rather than bicarbonate, organic carbonate or another carbon-bearing constituent? definition
- Does the name describe a discrete compound, a dissolved species or carbonate contained within a larger material? boundary
Counterions and hosts
Locates carbonate within its actual chemical and material associations.
Composition assignment
Record associated cations, host phases and evidence for pure, substituted or mixed composition.
- Which cations and stoichiometric relationships define each identified solid carbonate phase? definition
- What evidence distinguishes a single carbonate phase from a mixture or carbonate dispersed within another material? measurement
Carbonate inventory Establishes how much carbonate is present and whether the reported amount represents the material of interest.
Carbonate content, inorganic carbon, alkalinity and carbonate-equivalent results cannot be substituted without interpretation.
Quantity and basis
Makes carbonate measurements comparable through explicit reporting conventions.
Analytical quantity
Record what was actually measured, its reporting basis and the conversion assumptions.
- Does the result report carbonate ion, a named carbonate compound, inorganic carbon, alkalinity or a stated carbonate equivalent? measurement
- What moisture basis, extraction procedure, uncertainty and conversion assumptions accompany the reported quantity? provenance
Distribution and sampling
Connects measured carbonate to its spatial distribution and sampling conditions.
Representative carbonate content
Record whether carbonate occurs throughout the material or in locally concentrated fractions.
- Is carbonate distributed through grains, surface deposits, veins, suspended particles or dissolved fractions? measurement
- Could sampling, filtration, drying or exposure to air have changed the carbonate amount or fraction being measured? provenance
Solid carbonate state Describes carbonate solids at the phase and accessible-surface levels.
Solid carbonate behaviour depends on phase identity and physical accessibility as well as chemical formula.
Phase and hydration
Distinguishes polymorphs, hydrates and unresolved solid forms where applicable.
Identified solid form
Record the supported solid-phase assignment and its condition-dependent limits.
- Which crystalline phases, polymorphs, hydrates or amorphous components have been identified, and by which methods? measurement
- Which observed water content is structural hydration, and which is adsorbed moisture or free liquid? boundary
Surface and accessibility
Records the physical features that govern contact with reacting fluids.
Accessible carbonate
Record particle geometry and barriers that may limit dissolution or other surface reactions.
- What particle sizes, exposed surfaces and connected pores make carbonate accessible to the intended liquid or gas? measurement
- Do coatings, cementation or agglomeration restrict reaction, and what evidence supports changing the material's physical form? action
Aqueous carbonate equilibria Interprets carbonate in water through speciation, gas exchange and phase-specific saturation.
Dissolved carbonate abundance and solid stability cannot be inferred from a carbonate label or pH alone.
Speciation and gas exchange
Establishes the aqueous conditions and system boundaries needed to interpret carbonate species.
Conditional carbonate speciation
Record measured inputs and assumptions used to distinguish carbonate from other dissolved inorganic carbon species.
- Which measurements constrain speciation, including pH, inorganic carbon or alkalinity, temperature and ionic composition? measurement
- Is the solution closed to carbon dioxide exchange, exposed to a known gas phase or subject to changing gas conditions? boundary
Solid-solution exchange
Relates dissolved composition to identified carbonate solids while separating equilibrium tendency from observed rate.
Dissolution and precipitation assessment
Record phase-specific saturation estimates alongside evidence of actual material transfer.
- Relative to which carbonate phase is saturation evaluated, using which activities, equilibrium data and temperature? measurement
- What observations show dissolution or precipitation, and could kinetics, missing nucleation sites or surface barriers limit the predicted change? measurement
Carbonate actions and limits Connects composition and state to justified treatment and handling decisions.
Carbonates differ in reaction conditions, products and hazards; permitted actions require evidence for the particular material.
Chemical and thermal conversion
Assesses proposed carbonate reactions and their material consequences.
Conversion readiness
Record the evidence needed before acid treatment, heating or another carbonate conversion.
- For the identified carbonate, what evidence establishes the proposed reaction conditions and expected gas, dissolved and solid products? action
- What carbonate inventory, acid demand or thermal behaviour must be established to control the intended conversion and any carbon dioxide release? measurement
Handling and use constraints
Assesses storage, contact and use conditions through carbonate-specific behaviour and constituent evidence.
Permitted material actions
Record supported limits for handling and use without assuming all carbonate salts share the same properties.
- Which identified cations, impurities, dust properties or solution conditions constrain the intended handling or use? action
- Which moisture, acid-contact or carbon dioxide exposure conditions could change this material enough to require reassessment? boundary
What the second pass must settle
- Does the registry intend carbonate to cover the inorganic anion and its salts, or does it also include organic carbonates or carbonate rocks?
- Which existing Vercy models already own carbonate minerals, bicarbonate, dissolved inorganic carbon and carbonate-bearing mixtures, and where should this entry link to them?
- What minimum identification evidence is sufficient for each intended context, particularly when only bulk carbon, alkalinity or an acid reaction is available?
- Which equilibrium datasets, activity models and measurement conventions are appropriate across the intended aqueous conditions?
- Which carbonate compositions and intended actions require researched phase-transition, reaction-rate and constituent-hazard evidence before an agent may recommend treatment?