Product introduction : White cubic crystal or powder. It is slightly hygroscopic in moist air, precipitates free iodine for a long time and turns yellow, and can form a trace amount of iodate. Light and moisture can accelerate decomposition. 1 g was dissolved in 0.7 ml of water, 0.5 ml of boiling water, 22 ml of ethanol, 8 ml of boiling ethanol, 51 ml of absolute ethanol, 8 ml of methanol, 7.5 ml of acetone, 2 ml of glycerol, and about 2.5 ml of ethylene glycol. Its aqueous solution is neutral or slightly alkaline and can dissolve iodine. The aqueous solution will also oxidize and change to a yellow color, which can be prevented by adding a small amount of alkali. The relative density is 3.12. The temperature of 680 ° C. The boiling point of 1330 ° C. The approximate lethal dose (rat, vein) was 285 mg/kg. It is widely used in the volumetric analysis of iodometric methods to prepare titration solutions. Mediums such as Beredes, Modified White, MS, and RM are prepared in haplotypes. Fecal examination, etc. Photo. Pharmaceutical.