- Praseodymium(III) chloride
Green hexagonal needles, Hygroscopic
Used as the raw material of praseodynium metal and other Pr compounds. Also used as a petroleum catalyst.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
4.02 g/cm3 (25 C)
1.7266 (900 C)
Heat of fusion
Hazards and Protection.
Keep tightly closed. Store in a cool dry place.
Compatible chemical-resistant gloves. Chemical safety goggles.
Government approved respirator.
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stable at normal temperatures and pressures.
Strong oxidizing agents.
Hydrogen chloride gas.
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Emits toxic fumes under fire conditions.
Irritant. Irritating to eyes. Target organ(s): Liver.
Material may be irritating to mucous membranes and upper respiratory tract.
May cause skin irritation.
Causes eye irritation.
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.