neodymium
Let an agent identify neodymium and its properties, relay production, uses, isotopes and supply issues from reference sources, explain its role in magnets and the energy transition, and distinguish it from neighbouring lanthanides.
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 neodymium and its properties, relay production, uses, isotopes and supply issues from reference sources, explain its role in magnets and the energy transition, and distinguish it from neighbouring lanthanides.
A chemical element with symbol Nd and atomic number 60, a soft, silvery lanthanide that tarnishes in air and is among the more abundant rare earths; neodymium is best known for neodymium-iron-boron magnets, the strongest permanent magnets, used in motors, wind turbines, hard drives and speakers, and is also used in lasers, glass colouring and catalysts, with seven natural isotopes including the long-lived neodymium-144.
What it is for: Permanent magnets, lasers, glass and catalysts.
It can be relay properties and isotopes; explain production and uses; relay supply and policy issues; distinguish from other lanthanides.
Distinguishing features
Strongest permanent magnets
Critical material status
Laser and glass uses
Coloured salts
What it looks like
A silvery metal that develops an oxide layer in air; its salts are violet to pink.
Physical character
atomic number: 60 Z
standard atomic weight: 144.242 u
melting point: 1024 degrees C
density: 7.01 g/cm3
How it is recognised
Element 60, symbol Nd
Lanthanide of strong magnets
Praseodymium and promethium are the neighbouring lanthanides
Related models
is a kind of - in registry terms
is a kind of - in general terms
is used in - the main application
is adjacent to - element 59
In practice
Families and kinds
neodymium metal and alloys
neodymium compounds such as the oxide and glass dopants
isotopes from neodymium-124 to neodymium-161, with seven natural and Nd-144 and Nd-150 very weakly radioactive
neodymium in magnets, lasers and catalysts
Identifiers
symbol Nd
CAS 7440-00-8
Standards and regulation
Critical raw material listings in the EU, US and elsewhere
Rare earth export controls
Chemical safety data sheets
Magnet recycling rules under development
Failure modes and hazards
Supply concentration and export restrictions
Environmental impact of mining
Strong magnet hazards such as pinching and pacemaker interference
Also called
+12
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.neodymium
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 neodymium is.
Identity.
Properties
Properties.
Properties
Properties.
- What are the physical and chemical properties of neodymium? definition
- Is the question about neodymium or a neighbouring lanthanide? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- Which isotopes exist, and which are used in dating and research? definition
- Which entry fits the specific isotope? action
Source Supply.
Supply.
Production
Mining and separation.
Production
Production.
- Where is neodymium mined and separated, and who produces it, with sources? provenance
- Which sources are cited? provenance
Policy
Critical material policy.
Policy
Policy.
- Why is neodymium listed as critical, and what policies address supply, with positions attributed? provenance
- Is the presentation neutral? boundary
Use Uses and safety.
Application.
Magnets
Magnets.
Magnets
Magnets.
- How are neodymium magnets made and used in motors, turbines and electronics? provenance
- Which entry fits neodymium magnet? action
Other
Lasers, glass and safety.
Other
Other.
- How is neodymium used in lasers and glass, and what hazards do strong magnets present? provenance
- Which references are standard? provenance
Context History and recycling.
Context.
Discovery
Discovery.
Discovery
Discovery.
- How was neodymium separated from didymium by Auer von Welsbach in 1885? provenance
- Which entry fits the history of the rare earths? action
Recycling
Recycling.
Recycling
Recycling.
- How are neodymium magnets recycled, and what progress has been made? provenance
- Which entry fits rare earth recycling? action
What the second pass must settle
- Should neodymium magnet be the primary linked entry?
- How should supply data be linked?
- The registry entry has merged aliases naming isotopes; should they be split off?