Antimony Triiodide
Structural Formula Vector Image
Title: Antimony Triiodide
CAS Registry Number: 7790-44-5
Molecular Formula: I3Sb
Molecular Weight: 502.47
Percent Composition: I 75.77%, Sb 24.23%
Line Formula: SbI3
Literature References: Prepd by the interaction of antimony and iodine in boiling benzene or tetrachloroethane: Bailar, Cundy, Inorg. Synth. 1, 104 (1939); Scattergood, J. Chem. Educ. 20, 40 (1943).
Properties: Ruby-red, trigonal crystals (yellowish-green modifications have been observed). d417 4.921. The tendency to sublime becomes noticeable at 100°. mp 168°. bp 420°. Critical temp 1101°; crit press. 55 atm. Dipole moment: 1.58. Dec by water and air to SbOI (antimony oxyiodide). Sol in alcohol, acetone, carbon disulfide, HCl, soln of KI. Insol in carbon tetrachloride.
Melting point: mp 168°
Boiling point: bp 420°
Density: d417 4.921

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