Cuprous Iodide
Structural Formula Vector Image
Title: Cuprous Iodide
CAS Registry Number: 7681-65-4
Trademarks: Hydro-Giene (Water Science)
Molecular Formula: CuI
Molecular Weight: 190.45
Percent Composition: Cu 33.37%, I 66.63%
Literature References: Occurs in nature as the mineral marshite (red-brown crystals). Prepn: Kaufman, Pinnel, Inorg. Synth. 6, 3 (1960); Glemser, Sauer in Handbook of Preparative Inorganic Chemistry vol 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) p 1007.
Properties: Dense powder or cubic crystals (zinc-blende structure). Less photosensitive than CuBr or CuCl. mp 588-606°; bp ~1290°; d425 5.63. Extremely insol in water; practically insol in dil acids, alcohol; sol in aq solns of NH3, alkali cyanides, thiosulfates, iodides; dec by concd H2SO4 and HNO3.
Melting point: mp 588-606°
Boiling point: bp ~1290°
Density: d425 5.63
Use: As catalyst in organic reactions; as ice-nucleating chemical; as coating in cathode-ray tubes; as source of iodine in animal feeds; with HgI2 as temp indicator; bactericide.

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