1676. Calcium Iodate

Nomenclature

CAS number: 7789-80-2
Lautarite.
CaI2O6; mol wt 389.88.
Ca 10.28%, I 65.10%, O 24.62%.
Ca(IO3)2.

Description and references

Prepd by passing chlorine into a hot soln of lime in which iodine has been dissolved: Bahl, Singh, J. Indian Chem. Soc. 17, 397 (1940).

Properties

Nonhygroscopic, monoclinic-prismatic crystals. d415 4.519. Stable up to 540°. Sensitive to reducing agents. Soly in water (g/100 ml): 0.10 (0°); 0.95 (100°). More sol in aq solns of iodides and in amino acid solns. Sol in nitric acid. Insol in alcohol.

Derivative

Monohydrate.

Properties

Cubic crystals. Slightly sol in water.

Derivative

Hexahydrate.

Properties

Orthorhombic crystals. Slightly sol in water.

Use

Nutritional source of iodine in foods and feedstuffs. More stable in table salts than iodides: Food Field Reporter, Aug. 8, 1956; Daum, C.A. 51, 5324 (1957); to improve properties of yeast-leavened bakery products.

Therapeutic Category

Antiseptic.

Keywords

Antiseptic/Disinfectant; Halogens/Halogen Containing Compounds