{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.copper-ditetrafluoroborate","code":"thing-q1387655","url":"https://ver.cy/models/thing/q1387655/","name":"copper ditetrafluoroborate","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Copper ditetrafluoroborate, commonly called copper(II) tetrafluoroborate, is an ionic compound with nominal formula Cu(BF4)2, comprising copper(II) cations and tetrafluoroborate anions, encountered in hydrated forms and aqueous solutions.","purpose":"Enable an agent to recognise copper ditetrafluoroborate, assess the composition and condition of a particular sample, and determine its suitability for a specified use.","scope":{"in":["Copper(II) and tetrafluoroborate identity, nominal Cu(BF4)2 stoichiometry and form-specific identifiers","Hydration state, water content and distinction between solid salt and dissolved substance","Copper assay, tetrafluoroborate integrity, impurities and analytical confidence","Physical properties and stability under recorded conditions","Form-specific handling constraints and suitability for a defined chemical use"],"out":["Complete formulations of plating baths, catalysts or other products containing the salt","Manufacturing plants and detailed synthesis procedures","Copper metal, copper(I) compounds and other copper(II) salts as independent substances","Tetrafluoroboric acid and decomposition products as independent substances","Reaction mechanisms and process performance beyond evidence about this material's suitability"],"boundaries":[]},"distinguishingFeatures":["Confirm copper in oxidation state +2 and tetrafluoroborate as the intended counterion; a copper assay alone cannot distinguish this salt from other copper salts.","Test whether composition supports two tetrafluoroborate anions per copper ion, allowing explicitly for water, solvent and impurities.","Identify BF4− rather than inferring tetrafluoroborate identity from total fluorine; copper fluoride is a different substance.","Resolve anhydrous, hydrated and dissolved forms before comparing identifiers, formula masses or assay values.","Distinguish the salt from copper coordination compounds containing additional named ligands and from commercial mixtures containing free acid or additives."],"structure":{"bundles":[{"id":"cupric-tetrafluoroborate-identity","name":"Cupric tetrafluoroborate identity","description":"Establish what the registry name denotes and how an actual sample demonstrates that identity.","layers":[{"id":"ionic-composition","name":"Ionic composition","description":"Resolve the copper oxidation state and intended counterion stoichiometry.","findings":[{"id":"cupric-salt-identity-test","name":"Cupric salt identity test","description":"Require evidence compatible with Cu(II) and two BF4− counterions per copper, while recording additional constituents separately.","questions":[{"text":"What evidence establishes copper(II) and intact tetrafluoroborate in this sample?","id":"cupric-salt-identity-test-q01","kind":"measurement"},{"text":"Does the measured composition support Cu(BF4)2 after accounting for water, solvent and impurities?","id":"cupric-salt-identity-test-q02","kind":"boundary"}]}]},{"id":"registry-and-form-mapping","name":"Registry and form mapping","description":"Connect the registry concept to names and identifiers without silently collapsing material forms.","findings":[{"id":"hydrate-aware-name-resolution","name":"Hydrate-aware name resolution","description":"The supplier lists copper ditetrafluoroborate hydrate as a synonym for Cu(BF4)2·xH2O, showing why hydration must be resolved explicitly. [Supplier identity record](https://www.sigmaaldrich.com/NR/en/product/aldrich/366587).","questions":[{"text":"Does the originating registry record denote the parent salt, a particular hydrate or an unspecified hydrated substance?","id":"hydrate-aware-name-resolution-q01","kind":"definition"},{"text":"Which CAS, EC and PubChem records explicitly match that interpretation, and what source establishes each mapping?","id":"hydrate-aware-name-resolution-q02","kind":"provenance"}]}]}]},{"id":"hydration-and-assay","name":"Hydration and assay","description":"Establish how much copper tetrafluoroborate a material quantity represents and what accompanies it.","layers":[{"id":"water-and-material-form","name":"Water and material form","description":"Separate crystalline hydration, additional moisture and solvent water.","findings":[{"id":"water-basis-for-amount","name":"Water basis for amount","description":"Record measured total water and any evidence assigning a hydrate stoichiometry; do not infer a specific hydrate from an unspecified xH2O label.","questions":[{"text":"What water content was measured, by which method and on what sampling date?","id":"water-basis-for-amount-q01","kind":"measurement"},{"text":"What evidence distinguishes structural hydration from adsorbed moisture or water used as solvent?","id":"water-basis-for-amount-q02","kind":"boundary"}]}]},{"id":"assay-and-co-constituents","name":"Assay and co-constituents","description":"Make purity claims interpretable and reveal constituents relevant to the intended use.","findings":[{"id":"interpretable-copper-and-salt-assay","name":"Interpretable copper and salt assay","description":"Keep elemental copper assay, salt-equivalent assay and impurity measurements distinct, with their calculation bases and uncertainty.","questions":[{"text":"Does the reported percentage mean elemental copper, Cu(BF4)2 equivalent or another assay basis, and is it as-received or dry?","id":"interpretable-copper-and-salt-assay-q01","kind":"definition"},{"text":"What measurements constrain free acid, other anions, trace metals and deviations from the expected tetrafluoroborate-to-copper ratio?","id":"interpretable-copper-and-salt-assay-q02","kind":"measurement"}]}]}]},{"id":"physical-state-and-chemical-change","name":"Physical state and chemical change","description":"Evaluate the sample under its actual temperature, solvent and storage conditions.","layers":[{"id":"conditioned-physical-properties","name":"Conditioned physical properties","description":"Attach observations and constants to the specific material form.","findings":[{"id":"form-specific-property-evidence","name":"Form-specific property evidence","description":"Record phase, solubility and thermal events only with the tested form and conditions; separate phase transitions from water loss and decomposition.","questions":[{"text":"For which hydrate or solution composition, temperature and pressure were the reported properties measured?","id":"form-specific-property-evidence-q01","kind":"measurement"},{"text":"Does a reported thermal event represent melting, dehydration or decomposition, and is a boiling-point value physically applicable?","id":"form-specific-property-evidence-q02","kind":"boundary"}]}]},{"id":"identity-retention","name":"Identity retention","description":"Assess whether exposure or processing has changed water content or chemical composition.","findings":[{"id":"reassessment-after-exposure","name":"Reassessment after exposure","description":"Treat changes in appearance or handling history as reasons for investigation, with separate tests for moisture change, copper speciation and tetrafluoroborate integrity.","questions":[{"text":"What temperature, humidity, solvent and container exposure occurred since the last composition measurement?","id":"reassessment-after-exposure-q01","kind":"provenance"},{"text":"Which observations or analytical changes require reassessment before the sample can be used under its previous specification?","id":"reassessment-after-exposure-q02","kind":"action"}]}]}]},{"id":"use-fitness-and-handling","name":"Use fitness and handling","description":"Connect verified material properties to a proposed use and applicable handling evidence.","layers":[{"id":"application-acceptance","name":"Application acceptance","description":"Define what this material must satisfy to serve as the intended copper source or reagent.","findings":[{"id":"qualified-material-selection","name":"Qualified material selection","description":"Require application-specific acceptance limits and calculate quantities from the actual assay and form.","questions":[{"text":"What limits on water, copper assay, free acid and contaminants must this salt meet for the proposed application?","id":"qualified-material-selection-q01","kind":"action"},{"text":"What evidence supports substituting this hydrate or solution for the material specified by the application?","id":"qualified-material-selection-q02","kind":"boundary"}]}]},{"id":"form-specific-safety-evidence","name":"Form-specific safety evidence","description":"Resolve applicable hazard and handling information for the supplied form and concentration.","findings":[{"id":"documented-handling-constraints","name":"Documented handling constraints","description":"Base hazard classification, exposure controls, incompatibilities and disposal constraints on current documentation that identifies the actual salt form or mixture.","questions":[{"text":"Which current jurisdiction-specific SDS matches this material's identity, hydration, concentration and additives?","id":"documented-handling-constraints-q01","kind":"provenance"},{"text":"What documented controls apply to exposure, incompatible materials, thermal or hydrolytic degradation and waste handling?","id":"documented-handling-constraints-q02","kind":"action"},{"text":"Are cited exposure limits specific to this substance or applicable through a broader copper or fluoride category?","id":"documented-handling-constraints-q03","kind":"boundary"}]}]}]},{"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.","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.","questions":[{"text":"Which of these check these first hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-identifiers-q01","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.","questions":[{"text":"Which of these real-world use hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-measurements-q01","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.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","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.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of copper ditetrafluoroborate this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe copper(II) tetrafluoroborate and its uses in plating and as a catalyst in general terms.","Report hazards and handling rules from safety data sheets."],"mustNot":["Discharge plating solutions containing it into drains or waters.","Handle it without the eye and skin protection the safety data sheet requires.","Mix it with incompatible materials that release hydrogen fluoride.","Store it in containers that it can corrode."],"requiresHuman":["Approving disposal of spent plating baths."]},"ethics":{"considerations":["Copper and fluoride effluent harms aquatic life and communities downstream.","Corrosive solutions injure workers."],"affectedParties":["Plating workers","Aquatic ecosystems","Communities downstream"]},"owners":{"steward":"The business that holds it; chemical and environmental authorities regulate supply and discharge.","roles":[],"masterSystems":["National chemical inventories"]},"relations":[{"target":"Q11173","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.copper-ditetrafluoroborate","Wikidata: Q1387655 (https://www.wikidata.org/wiki/Q1387655)"]},"properties":{"applicability":"required","items":["Substance and form identity: Copper(II) tetrafluoroborate; anhydrous, specified hydrate, unspecified hydrate or dissolved form","Copper oxidation state: +2 expected; mixed, other or unverified","Tetrafluoroborate-to-copper ratio: mol BF4−/mol Cu; nominally 2","Hydration and total water: mol H2O/mol Cu(BF4)2 and mass % water, with method","Copper content and assay basis: Mass % Cu or mass % Cu(BF4)2 equivalent; as-received or dry basis","Impurity profile: Mass %, mg/kg or mol/L for identified impurities, with detection limits","Physical state and solution concentration: Solid or solution; solvent, temperature, mol/L or mass fraction where applicable","Thermal and solubility properties: °C for identified thermal events; g/L or mol/kg for solubility, with form and conditions","Condition and identity retention: Verified unchanged, suspected moisture change, suspected chemical change or unassessed","Identifier and safety evidence: Links to form-matched CAS, EC and PubChem records, certificates and jurisdiction-specific SDS revisions"]},"recognition":{"applicability":"required","items":["A blue crystalline solid or blue aqueous solution.","Containers carry corrosive and harmful hazard pictograms."]},"capabilities":{"applicability":"required","items":["Reconcile a labelled sample with the registry identity using form-matched identifiers and analytical evidence.","Calculate copper and salt-equivalent amounts from measured assay, hydration and concentration.","Compare lots against application-specific limits for water, free acid, anion composition and trace metals.","Determine whether physical-property data apply to the sample's hydrate, solvent and temperature.","Flag material for reassessment when storage history or measurements suggest composition change.","Identify handling and use constraints from a current SDS matched to the actual material."]},"hazards":{"applicability":"required","items":["Eye and skin burns.","Toxicity to aquatic life.","Release of fluoride compounds."]},"interfaces":{"applicability":"required","items":["Globally Harmonized System of Classification and Labelling of Chemicals (GHS), United Nations."]},"context":{"applicability":"required","items":["Copper ditetrafluoroborate is encountered in chemical laboratories and industrial metal finishing, commonly as a hydrate or aqueous solution.","It supplies copper ions in some electroplating electrolytes and serves as a reagent or catalyst in chemical synthesis.","Suitability for a particular application depends on concentration, hydration state, acidity and impurities."]}},"sources":[{"title":"Wikidata item Q1387655: copper ditetrafluoroborate","url":"https://www.wikidata.org/wiki/Q1387655","note":"identity and sense of the item"},{"title":"Wikipedia: Copper(II) tetrafluoroborate","url":"https://en.wikipedia.org/wiki/Copper%28II%29_tetrafluoroborate","note":"general description of the item"}],"openQuestions":["Does vr.tr.copper-ditetrafluoroborate denote the parent Cu(BF4)2 identity or a particular hydrate, and does an existing Vercy model already cover that concept?","Which authoritative CAS, EC and PubChem mappings distinguish the parent salt, specified hydrates and unspecified hydrate without conflating them?","Which hydrate phases and nominally anhydrous forms are experimentally established, and how can their hydration be verified for routine samples?","What reliable form-specific solubility, thermal-transition and degradation data exist, including conditions affecting tetrafluoroborate integrity?","Which current hazard classifications, exposure-limit categories and application-specific impurity thresholds are supported for the intended supplied form and jurisdiction?"],"resources":{"spec":"/models/things/publications/thing-q1387655/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1387655/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T08:51:45Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:26+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}