Title: Cyanogen Bromide
CAS Registry Number: 506-68-3
Additional Names: Bromine cyanide
Molecular Formula: CBrN
Molecular Weight: 105.92
Percent Composition: C 11.34%, Br 75.44%, N 13.22%
Line Formula: BrCN
Literature References: Prepd from potassium or sodium cyanide and bromine: Hartman, Dreger, Org. Synth. 11, 30 (1931). Industrial prepn from sodium bromide, sodium chlorate, and sodium cyanide in 30% H2SO4: Ewan, Chem. Zentralbl. 1907, I, 591; Göpner, ibid. 1908, I, 1807; Grignard, Crouzier, Bull. Soc. Chim. Fr. [4] 29, 214 (1921). Brief review of synthetic applications: V. Kumar, Synlett 2005, 1638-1639.
Properties: Crystalline solid; dec in the presence of moisture. Vapors are highly irritating and very poisonous! d420 2.015. mp 52°. bp 61-62°. Freely sol in water, alcohol, ether. Aq solns of alkalies dec it to alkali cyanide and alkali bromide.
Melting point: mp 52°
Boiling point: bp 61-62°
Density: d420 2.015
CAUTION: Toxic effects similar to those of hydrogen cyanide, q.v.
Use: Reagent for the synthesis of cyanamides. |