Position:Home > ProductsProducts
Honest service, quality assurance
Chemical Reagent：Potassium iodide
Molecular Formula：KI
Molecular Weight：166.01
Appearance and Properties： A colowless or white，slightly delignescent crystalline powder，sets tree iodine and goes yellow when exposed to air and/or light，easily dissolves in water，dissolves in ethyl alcohol，acetone and glycerol，and is insoluble in ethyl ether. Melting point 680℃。
Use：Used as an analytical reagent，to prepare photographic emulsion，and in manufacture of pharmaceuticals.
Packing：100g，500g，25kg，50kg。
Standard：GB/T 1272-1988
|
SPECIFICATION |
VALUE |
|
|
AR |
CP |
|
|
Assay % |
≥ 98.5 |
≥ 98.0 |
|
PH（ 50g/Lsolution ， 25 ℃ ） |
6.8-8.0 |
6.8-8.0 |
|
Clarity |
meet standard |
meet standard |
|
Water-insoluble substances % |
≤ 0.01 |
≤ 0.02 |
|
Chloride and bomide （ as Cl ） % |
≤ 0.02 |
≤ 0.05 |
|
Iodate and iodine （ as IO3 ） % |
≤ 0.002 |
≤ 0.002 |
|
Total nitrogen content % |
≤ 0.002 |
≤ 0.005 |
|
Sulfate （ as SO4 ） % |
≤ 0.005 |
≤ 0.01 |
|
Sodium （ Na ） % |
≤ 0.1 |
|
|
Magnesium （ Mg ） % |
≤ 0.002 |
≤ 0.005 |
|
Calcium （ Ca ） % |
≤ 0.002 |
≤ 0.005 |
|
Iron （ Fe ） % |
≤ 0.0003 |
≤ 0.0005 |
|
Arsenic （ As ） % |
≤ 0.00002 |
|
|
Heavy Metals （ as Pb ） % |
≤ 0.0005 |
≤ 0.001 |
|
Barium （ Ba ） % |
≤ 0.002 |
≤ 0.004 |
|
Phosphate （ PO4 ） % |
≤ 0.002 |
|
|
Reductive substances |
meet standard |
|
