Properties
NdCl3 is a soft paramagnetic solid, which turns ferromagnetic at very low temperature of 0.5 K. Its electrical conductivity is about 240 S/m and heat capacity is ~100 J/(mol·K). NdCl3 is readily soluble in water and ethanol, but not in chloroform or ether. Reduction of NdCl3 with Nd metal at temperatures above 650 °C yields NdCl2:
- 2 NdCl3 + Nd → 3 NdCl2
Heating of NdCl3 with water vapors or silica produces neodymium oxochloride:
- NdCl3 + H2O → NdOCl + 2 HCl
- 2 NdCl3 + SiO2 → 2 NdOCl + SiCl4
Reacting NdCl3 with hydrogen sulfide at about 1100 °C produces neodymium sulfide:
- 2 NdCl3 + 3 H2S → 2 Nd2S3 + 6 HCl
Reactions with ammonia and phosphine at high temperatures yield neodymium nitride and phosphide, respectively:
- NdCl3 + NH3 → NdN + 3 HCl
- NdCl3 + PH3 → NdP + 3 HCl
Whereas the addition of hydrofluoric acid produces neodymium fluoride:
- NdCl3 + 3 HF → NdF3 + 3 HCl
Read more about this topic: Neodymium(III) Chloride
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