Zinc Iodide
Title: Zinc Iodide
CAS Registry Number: 10139-47-6
Molecular Formula: I2Zn
Molecular Weight: 319.22
Percent Composition: I 79.51%, Zn 20.49%
Line Formula: ZnI2
Literature References: Usually contains at least 98% ZnI2.
Properties: White or almost white, odorless, hygroscopic, granular powder; sharp, saline taste; becomes brown on exposure to air and light, due to liberation of iodine. d25 4.74; mp ~446°; bp ~625° with decompn. One gram dissolves in 0.3 ml water, 0.2 ml boiling water, 2 ml glycerol; freely sol in alcohol, ether. The aq soln is acid to litmus; pH about 5. Keep well closed and protected from light.
Melting point: mp ~446°
Boiling point: bp ~625° with decompn
Density: d25 4.74
Therap-Cat: Topical antiseptic, astringent.
Keywords: Astringent.

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