Title:  Bismuth Iodide 
CAS Registry Number:  7787-64-6 
Additional Names:  Bismuth triiodide 
Molecular Formula:  BiI3 
Molecular Weight:  589.69 
Percent Composition:  Bi 35.44%, I 64.56% 
Literature References:  Best prepd from the elements:  Watt et al., Inorg. Synth. 4, 114 (1953). 
Properties:  Black, minute, hexagonal crystals with metallic sheen.  d417 5.778, also reported as d 5.64.  Sublimes at 439° (760 mm), dec at 500°.  Practically insol in cold water, dec slowly in hot water.  Sol in liquid ammonia, abs ethanol (about 3.5% at 20°), in aq solns of KI, HI, and HCl.  The solid is slowly converted to Bi(IO3)3 upon prolonged exposure to air. 
Density:  d417 5.778; d 5.64   |