potassium iodide
-
Molecular Structure
Detailed Description
Potassium iodide
Molecular formula: KI
Property: This product is colorless transparent or white semi-transparent hexagon crystal or white granular powder, odorless, taste salty, bitter, slightly hygroscopicity. Deliquesce in wet air, turn yellow in acidic aqueous solution. Soluble in ethanol, acetone, methanol, glycerol and liquid ammonia. Slightly soluble in ether. Potassium iodide aqueous solution presents neutral or slightly alkalinity.
Potassium iodide is the cosolvent of iodine. it can generate potassium triiodide with potassium iodide and they are in balance state.
Ex-factory specification: In accordance to PRC Pharmacopoeia 2010 edition
Usage: It can be used for prevention of endemic goiter in pharmaceutical. Potassium iodide is the raw material for preparation of iodide and dyes. It can also be used as food additive. analytical reagent, etc.
Storage: Avoid and closely sealed.
Packing and specification: Box-type 10kg inside brown bottle 500g,round barrel 25kg inside.
Item Specification Test Result
Appearance colorless or white powder; odourless white powder; odourless
Purity ≥% (GC) 99 99.30
iodate positive reaction positive reaction
potassium salt - positive reaction positive reaction
Chloride < % 0.5 <0.5%
loss on drying, w/%≤ 1.0 0.03
Sulfate(as SO4) < 0.04% <0.04%
Heavy metal (as Pb)/mg/kg ≤ 10 <10
- potassium iodide