nickel
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.
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.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
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.
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.
What it is for: Alloys, plating, batteries and catalysts.
It can be relay properties and isotopes; explain production and uses; relay health and regulatory information; distinguish from similar metals.
Distinguishing features
Corrosion resistant
Ferromagnetic
Key alloying element
Common allergen
What it looks like
A lustrous silvery-white metal with a faint golden tinge, resistant to tarnish.
Physical character
atomic number: 28 Z
standard atomic weight: 58.693 u
melting point: 1455 degrees C
density: 8.91 g/cm3
How it is recognised
Element 28, symbol Ni
Ferromagnetic transition metal
Cobalt and iron are the neighbouring ferromagnetic metals
Related models
is a kind of - a transition metal
is a kind of - a common contact allergen
is used in - the largest use
is adjacent to - element 27
In practice
Families and kinds
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
Identifiers
symbol Ni
CAS 7440-02-0
Standards and regulation
EU nickel restriction for items in prolonged skin contact
Occupational exposure limits
IARC classification of nickel compounds
Battery and mining regulations
Failure modes and hazards
Contact allergy
Carcinogenicity of some compounds by inhalation
Flammability of fine powder
Environmental impact of mining
Also called
+3
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.nickel
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Identify What nickel is.
Identity.
Properties
Properties.
Properties
Properties.
- What are the physical and chemical properties of nickel? definition
- Is the question about nickel or a similar metal such as cobalt? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- Which isotopes exist, and which are stable? definition
- Which entry fits the specific isotope? action
Industry Production and uses.
Supply.
Production
Mining and refining.
Production
Production.
- How is nickel mined and refined, and who produces it, with sources? provenance
- Which sources are cited? provenance
Uses
Uses.
Uses
Uses.
- How is nickel used in alloys, plating, batteries and catalysts? provenance
- Which entry fits a specific alloy or product? action
Health Health and regulation.
Safety.
Allergy
Allergy.
Allergy
Allergy.
- What do health bodies say about nickel allergy and product restrictions? provenance
- Is the user asking about their own symptoms, which needs a clinician? boundary
Exposure
Exposure limits.
Exposure
Exposure.
- What occupational and environmental limits apply, and how are nickel compounds classified? provenance
- Which entry fits occupational health? action
Context History and markets.
Context.
History
History.
History
History.
- How was nickel discovered and named, and how did its use grow? provenance
- Which references are standard? provenance
Markets
Markets.
Markets
Markets.
- How is nickel traded, and what drives demand such as batteries? provenance
- Is the user asking for investment advice, which the model does not give? boundary
What the second pass must settle
- 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?