Title: Tellurium Tetraiodide

CAS Registry Number: 7790-48-9

Molecular Formula: I4Te

Molecular Weight: 635.22

Percent Composition: I 79.91%, Te 20.09%

Line Formula: TeI4

Literature References: Prepd from Te(OH)6 and HI, Gutbier, Flury, Z. Anorg. Allg. Chem. 32,108 (1902); Damiens, Ann. Chim. [9] 19, 44 (1923); Fehér in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 447.

Properties: Gunmetal-gray crystals. Stable in moist air. d415 5.05. mp 280°. Gives off I2 when heated. Hydrolyzed slowly by cold, quickly by hot water, forming TeO2 and HI. Sol in HI; somewhat sol in acetone.

Melting point: mp 280°

Density: d415 5.05