Title: Cerous Chloride
CAS Registry Number: 7790-86-5
Molecular Formula: CeCl3
Molecular Weight: 246.48
Percent Composition: Ce 56.85%, Cl 43.15%
Literature References: Prepn: Kleinheksel, Kremers, J. Am. Chem. Soc. 50, 959 (1928); Didtschenko, US 2932553 (1960 to Union Carbide); Harmon, Wickers, US 2982603 (1961 to USAEC); Taylor, Carter, J. Inorg. Nucl. Chem. 24, 387 (1962). Toxicity study: Graca et al., Arch. Environ. Health 5, 437 (1962).
Properties: Very fine powder, mp 822°. d25 3.97. Sol in water, alcohol (exothermic). LD50 in mice, guinea pigs (mg/kg): 352, 110 i.p. (Graca).
Melting point: mp 822°
Density: d25 3.97
Toxicity data: LD50 in mice, guinea pigs (mg/kg): 352, 110 i.p. (Graca)
Derivative Type: Heptahydrate
Properties: Colorless to yellow deliquesc orthorhombic crystals. Begins to lose water above 90°, becomes anhydr by 230°. Very sol in H2O, alcohol. Keep well closed.
Use: In manuf of Ce and Ce salts; with Al or Mg salts as catalyst in the polymerization of olefins. |