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Name: Neodymium
Symbol: Nd
Atomic Number: 60
Atomic Mass: 144.24 g
Number of Protons/Electrons: 60
Number of Neutrons: 84
Ionic Radius: Nd3+ / 0.995 Angstrom
Metal
Melting Point: 1016.0 °C
Boiling Point: 3127.0 °C
Density @ 293 K: 7.007 g/cm3
Oxide
Melting Point: 2272.0 °C
Density cubic C: 6.4534 g/cm3
Formula: Nd2O3
Molecular weight: 336.48 g
Metal %: 85.75
Toxicity LD 50.PO: (rat) > 1000 mg/kg
Dehydrated Carbonate
Formula *: Nd2(CO3)3
Molecular weight: 468.51 g
Oxide %: 71.8
Anhydrous Chloride
Formula *: NdCl3
Molecular weight: 250.60 g
Oxide %: 67.15
Toxicity LD 50.PO: (mouse) 5250 mg/kg
Anhydrous Fluoride
Formula *: NdF3
Molecular weight: 201.24 g
Oxide %: 83.6
Hydroxide
Formula *: Nd(OH)3
Molecular weight: 195.26 g
Oxide %: 86.15
Dehydrated Nitrate
Formula *: Nd(NO3)3
Molecular weight: 330.25 g
Oxide %: 50.95
Toxicity LD 50.PO: (rat) 2750 mg/kg
Dehydrated Oxalate
Formula *: Nd2(C2O4)3
Molecular weight: 552.54 g
Oxide %: 60.9
Anhydrous sulfate
Formula *: Nd2(SO4)3
Molecular weight: 576.65 g
Oxide %: 58.35
* theoretic data
| Isotope |
Half Life |
| Nd-142 |
Stable |
| Nd-143 |
Stable |
| Nd-144 |
2.1E15 years |
| Nd-145 |
Stable |
| Nd-146 |
Stable |
| Nd-147 |
10.98 days |
| Nd-148 |
Stable |
| Nd-149 |
1.72 hours |
| Nd-150 |
Stable |
Date of discovery: 1925
Discoverer: C.F. Aver von Welsbach
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Markets and applications
Electronics:
Magnetism (permanent magnets), Electronics (capacitors,
filters, resonators) SUPERAMIC™.
Catalysis:
Catalyst for diene polymerization
Others:
Infrared filter,
Glass coloring,
Laser.
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