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Rare Earth Metals
Neodymium Metal
Neodymium Metal
CAS No.: 7440-00-8
EINECS No.: 231-109-3
Chemical Symbol: Nd
Atomic Number: 60
Atomic Weight: 144.24
1. Product Description
Neodymium Metal is a silvery light rare earth metal of the lanthanide group. It is the core raw material for manufacturing high-performance NdFeB permanent magnets, and also widely applied in special alloys, hydrogen storage materials and rare earth functional materials.
2. Typical Chemical Specifications
(Adjust purity: 99.5% / 99.9% / 99.95% Nd/TREM as required)
Rare Earth Purity (wt.%)
Nd / Total Rare Earth Metals (TREM): ≥99.9%
Other Rare Earth Impurities (La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Y etc.): ≤0.1%
Non-Rare Earth Impurities (maximum, ppm)
Fe ≤ 150
Si ≤ 80
Ca ≤ 80
Mg ≤ 50
Al ≤ 60
C ≤ 250
O ≤ 400
N ≤ 120
Available Forms
Ingot / Lump / Chunk / Rod / Custom shapes
3. Physical Properties
- Appearance: Silvery-white metallic solid
- Density (20 °C): 7.01 g/cm³
- Melting Point: 1024 °C
- Boiling Point: 3074 °C
- Crystal Structure: Hexagonal close-packed (HCP)
- Mohs Hardness: 3.5
- Electrical resistivity (25 °C): 64.3 μΩ·cm
- Odor: Odorless
- Solubility: Insoluble in water
4. Chemical Properties
- Easily oxidizes in humid air; surface forms neodymium oxide layer.
- Reacts slowly with cold water, vigorously with hot water, releasing hydrogen.
- Dissolves readily in dilute mineral acids to produce neodymium salts.
- Highly reactive at elevated temperatures with oxygen, nitrogen and halogens.
- Principal oxidation state: +3.
- Moisture and air sensitive; long-term atmospheric exposure is prohibited.
5. Handling & Storage
- Storage: Hermetically sealed packaging, preferably under inert argon shielding. Store in cool, dry location, isolated from moisture, water and acids.
- Handling: Avoid creating metal dust. Prevent direct contact with humid air.
- Standard Packaging: Vacuum plastic bag + steel drum, backfilled with argon.
6. Applications
- Primary raw material for sintered & bonded NdFeB permanent magnets
- Additive for magnesium, aluminum and rare earth alloys
- Hydrogen storage alloy raw material
- Sputtering targets, rare earth master alloys
- Glass and ceramic colorants
