Potassium iodide
CAS Number7681-11-0
FormulaKI
Mol. Weight166.00 g/mol
Potassium iodide
What is Potassium iodide?
Potassium iodide is a chemical compound with CAS number 7681-11-0 and molecular formula KI. It is used in various industrial and research applications.
Specifications
Linear Formula
KI
Molecular Weight
166.00 g/mol
Grade
SAJ first grade
Assay/Purity
≥99.5%
Impurities
≤0.0005% heavy metals (as Pb)
≤0.001% total nitrogen (N)
≤0.005% thiosulfate (S2O3)
≤0.02% free alkali (as KOH)
Solubility
H2O: soluble1 M at 20 °C, clear, colorless
Safety Information
GHS07Signal Word
Warning
Hazard Statements
H302-H315-H319
Precautionary Statements
P305 + P351 + P338
Required PPE
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Melting Point
681 °C(lit.)
Anion Traces
bromide, chloride (as Cl-): ≤100 mg/kg
iodate (IO3-): ≤2 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg
Cation Traces
As: ≤0.1 mg/kg
Ba: ≤20 mg/kg
Ca: ≤10 mg/kg
Fe: ≤3 mg/kg
Mg: ≤10 mg/kg
Na: ≤300 mg/kg
EC Number
231-659-4
WGK Germany
1