Calcium Iodate Alias: CAS NO.: 7789-80-2;10031-32-0 M.F.: Ca.(IO3)2 M.W.: 389.88 Assay: 99% Appearance: Package:25kg/fibre drum Specification: BP2007/USP31 Usage:used as food additive and feed. Calcium iodide is the inorganic compound with the formula CaI2. This colourless deliquescent solid is highly soluble in water. Its properties are similar to those for related salts, such as calcium chloride. It is used in photography.