{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.nickel","code":"thing-q744","url":"https://ver.cy/models/thing/q744/","name":"nickel","alternateNames":["nickel-54m","nickel-49","nickel-50","nickel-51","nickel-52","nickel-53","nickel-54","nickel-55","nickel-57","nickel-65","nickel-66","nickel-67"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A chemical element with symbol Ni and atomic number 28, a hard, silvery-white, ductile transition metal that resists corrosion and is ferromagnetic at room temperature; nickel is used mainly in stainless steel and other alloys, in plating, coins, batteries and catalysts, is mined from sulfide and laterite ores, and is a common contact allergen.","purpose":"Let an agent identify nickel and its properties, relay production, uses and isotopes from reference sources, relay health and regulatory information such as allergy and exposure limits, and distinguish it from similar metals.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Corrosion resistant","Ferromagnetic","Key alloying element","Common allergen"],"structure":{"bundles":[{"id":"identify","name":"Identify","description":"What nickel is.","layers":[{"id":"properties","name":"Properties","description":"Properties.","findings":[{"id":"properties-finding","name":"Properties","description":"Properties.","questions":[{"text":"What are the physical and chemical properties of nickel?","kind":"definition"},{"text":"Is the question about nickel or a similar metal such as cobalt?","kind":"boundary"}]}]},{"id":"isotopes","name":"Isotopes","description":"Isotopes.","findings":[{"id":"isotopes-finding","name":"Isotopes","description":"Isotopes.","questions":[{"text":"Which isotopes exist, and which are stable?","kind":"definition"},{"text":"Which entry fits the specific isotope?","kind":"action"}]}]}]},{"id":"industry","name":"Industry","description":"Production and uses.","layers":[{"id":"production","name":"Production","description":"Mining and refining.","findings":[{"id":"production-finding","name":"Production","description":"Production.","questions":[{"text":"How is nickel mined and refined, and who produces it, with sources?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]},{"id":"uses","name":"Uses","description":"Uses.","findings":[{"id":"uses-finding","name":"Uses","description":"Uses.","questions":[{"text":"How is nickel used in alloys, plating, batteries and catalysts?","kind":"provenance"},{"text":"Which entry fits a specific alloy or product?","kind":"action"}]}]}]},{"id":"health","name":"Health","description":"Health and regulation.","layers":[{"id":"allergy","name":"Allergy","description":"Allergy.","findings":[{"id":"allergy-finding","name":"Allergy","description":"Allergy.","questions":[{"text":"What do health bodies say about nickel allergy and product restrictions?","kind":"provenance"},{"text":"Is the user asking about their own symptoms, which needs a clinician?","kind":"boundary"}]}]},{"id":"exposure","name":"Exposure","description":"Exposure limits.","findings":[{"id":"exposure-finding","name":"Exposure","description":"Exposure.","questions":[{"text":"What occupational and environmental limits apply, and how are nickel compounds classified?","kind":"provenance"},{"text":"Which entry fits occupational health?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"History and markets.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How was nickel discovered and named, and how did its use grow?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"markets","name":"Markets","description":"Markets.","findings":[{"id":"markets-finding","name":"Markets","description":"Markets.","questions":[{"text":"How is nickel traded, and what drives demand such as batteries?","kind":"provenance"},{"text":"Is the user asking for investment advice, which the model does not give?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Report nickel's properties, alloys and uses, such as in stainless steel and batteries.","Flag nickel content in products for people with nickel allergy."],"mustNot":["Label a product nickel-free or hypoallergenic without evidence.","Let workers inhale nickel dust or fumes without protection.","Misrepresent the origin of nickel to hide environmental or labour harm.","Dispose of nickel-containing batteries outside proper collection."],"requiresHuman":["Sourcing decisions that rely on contested claims about mining practices."]},"ethics":{"considerations":["Nickel allergy is common and painful; honest labelling protects people.","Nickel mining and smelting have polluted land and harmed local and indigenous communities."],"affectedParties":["People with nickel allergy","Mining and smelter workers","Communities near mines"]},"owners":{"steward":"The holder of the material; mining and environmental regulators oversee extraction.","roles":[],"masterSystems":[]},"relations":[{"target":"Q11426","type":"parent","note":"registry parent class"},{"target":"Q186752","type":"parent","note":"registry parent class"},{"target":"Q21073024","type":"parent","note":"registry parent class"},{"target":"Q9259184","type":"parent","note":"registry parent class"},{"target":"metal","type":"related","note":"a transition metal"},{"target":"allergen","type":"related","note":"a common contact allergen"},{"target":"stainless steel","type":"related","note":"the largest use"},{"target":"cobalt","type":"related","note":"element 27"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.nickel","Wikidata: Q744 (https://www.wikidata.org/wiki/Q744)","symbol: Ni","CAS: 7440-02-0"]},"properties":{"applicability":"required","items":["atomic number: 28 Z","standard atomic weight: 58.693 u","melting point: 1455 degrees C","density: 8.91 g/cm3"]},"recognition":{"applicability":"required","items":["Element 28, symbol Ni","Ferromagnetic transition metal","Cobalt and iron are the neighbouring ferromagnetic metals","A lustrous silvery-white metal with a faint golden tinge, resistant to tarnish."]},"capabilities":{"applicability":"required","items":["relay properties and isotopes","explain production and uses","relay health and regulatory information","distinguish from similar metals"]},"hazards":{"applicability":"required","items":["Contact allergy","Carcinogenicity of some compounds by inhalation","Flammability of fine powder","Environmental impact of mining"]},"interfaces":{"applicability":"required","items":["EU nickel restriction for items in prolonged skin contact","Occupational exposure limits","IARC classification of nickel compounds","Battery and mining regulations"]},"context":{"applicability":"required","items":["Alloys, plating, batteries and catalysts.","nickel metal and alloys such as stainless steel, Monel and Inconel","nickel compounds such as sulfate and oxide","isotopes from nickel-48 to nickel-82, with five stable isotopes","nickel in batteries and catalysts"]}},"sources":[{"title":"Wikidata item Q744: nickel","url":"https://www.wikidata.org/wiki/Q744","note":"identity and sense of the item"},{"title":"Wikipedia: Nickel","url":"https://en.wikipedia.org/wiki/Nickel","note":"general description of the item"}],"openQuestions":["Should isotopes and major alloys be separate entries?","How should exposure limits be linked?","The registry entry has merged aliases naming isotopes; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q744/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q744/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T21:47:57Z","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 2026-10-06T19:52:01+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}