800. Arsenic Tribromide

Nomenclature

CAS number: 7784-33-0
Arsenous tribromide.
AsBr3; mol wt 314.63.
As 23.81%, Br 76.19%.

Description and references

Prepn: Oddo, Giachery, Gazz. Chim. Ital. 53, 56 (1923); Schenk in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 597.

Properties

Deliquescent, orthorhombic prisms. Poisonous. d425 3.397; d450 (liq) 3.3282; d475 3.2623; d4100 3.1995. mp 31.1°. bp760 221°; bp11 89°. Dipole moment 1.66. Heat of fusion 8.93 cal/g. Fumes in moist air. Dec by water with the formation of As2O3 and HBr. Miscible with ether, benzene. Sol in hydrocarbons, chlorinated hydrocarbons, carbon disulfide, oils and fats.