Potassium Iodide AGR ACS | KI ≥ 99% | CAS 7681-11-0

Potassium iodide, AGR ACS grade. White granular solid with fine, uniform particle size and good flow characteristics. Meets ACS specifications for analytical reagents. Odourless; water-soluble with a controlled pH of 6–9.2 at 5%.

Typical Applications

Standard reagent for iodometric volumetry, reference standard solutions and syntheses requiring tight control of cationic impurities. Also used in culture media preparation, enzyme assays and spectrophotometric determinations where documented ACS-grade purity is required.

Analytical Specifications

• Formula: KI
• Molecular weight: 166.00
• CAS: 7681-11-0
• EC: 231-659-4
• TARIC: 28276000
• Assay: ≥ 99%
• Appearance: White granular solid, fine uniform particle size, free-flowing
• Odour: Odourless
• pH (5% in water): 6–9.2
• Loss on drying (150 °C): ≤ 0.2%
• Water-insoluble matter: ≤ 0.005%
• Iodate (IO₃): ≤ 0.0003%
• Iron (Fe): ≤ 0.0003%
• Chloride (Cl⁻) and bromide (Br⁻) (as Cl): ≤ 0.01%
• Sulfate (SO₄): ≤ 0.005%
• Nitrogen compounds (N): ≤ 0.001%
• Heavy metals (Pb): ≤ 0.0005%
• Phosphate (PO₄): ≤ 0.001%
• Barium (Ba): ≤ 0.002%
• Calcium (Ca): ≤ 0.002%
• Sodium (Na): ≤ 0.005%
• Magnesium (Mg): ≤ 0.001%
• Volatile organic impurities: Compliant

Safety

Hazard statements: H320, H372. Precautionary statements: P264, P270, P280, P305+P351+P338, P337+P313. Consult the Safety Data Sheet before use.