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Technical Data Sheet Potassium iodide

Compound Information
Product Name: Potassium iodide
CAS No.: 7681-11-0
Molecular Formula: KI
Molecular Weight: 166
Revision Date: 2026-04-16
Analytical Information
Tests Specifications
Description White crystalline powder.
Grade AR
Solubility H2O: 1 M at 20 °C, clear, colorless
Purity Min. 99.8%
pH(5% aq soln) 6.0 - 8.0
Insoluble matter 0.003% max
Loss on drying,110°C 0.2% max
Acidity(as HI) 0.0065% max
Alkalinity 0.006% max
Chloride,Bromide(as Cl) 0.01% max
Iodate(IO3) 0.0002% max
Phosphate(PO4) 0.001% max
Sulphate(SO4) 0.0025% max
Total nitrogen(N) 0.001% max
Sodium(Na) 0.05% max
Arsenic (As) 0.00001% max
Calcium (Ca) 0.0005% max
Copper (Cu) 0.0002% max
Iron (Fe) 0.0002% max
Lead (Pb) 0.0002% max
Magnesium (Mg) 0.0005% max
Iodine reducing substances(I) 0.001% max
IR Pass test
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