Nomenclature
CAS number: 7790-86-5
CeCl
3; mol wt 246.48.
Ce 56.85%, Cl 43.15%.
Description and 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).Derivative
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.