Potassium Iodide 99.9% BP, EP, USP, FG




Potassium iodide is an inorganic compound with the chemical formula KI. This white salt is the most commercially significant iodide compound. It is less hygroscopic (absorbs water less readily) than sodium iodide, making it easier to work with. Aged and impure samples are yellow because of aerial oxidation of the iodide to elemental iodine.

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  • Elephant Toothpaste Experiment 
  • Used to Make Lugols iodine Solutions for all applications
  • A precursor to silver iodide (AgI) an important chemical in film photography
  • A component in some disinfectants and hair treatment chemicals
  • As a fluorescence quenching agent in biomedical research

Minimum Assay: >99%
Molecular Formula: KI
Molecular Weight: 166.0 g/mol
Melting Point: 681 °C
Iodate (as KIO3): <0.0004%
Heavy Metals (as Pb): <0.001%
Loss on Drying: <1%
Alkalinity: Passes Test
Nitrates,Ammonia, Nitrites: Passes Test
Thiosulphate and Barium: Passes Test

Hazard Phrases: Causes damage to organs through prolonged or repeated exposure.

Prec Phrases: Do not breathe dust/fume/gas/mist/vapours/spray. Wash hands thoroughly after handling. Do no eat, drink or smoke when using this product. Get medical advice/attention if you feel unwell. Dispose of contents/container.

Cas No: 7681-11-0
Einecs No: 231-659-4


HS CODE: 2827601000


Following the UK’s departure from the EU on 1 January 2021, all European shipments are sent on a DAP Basis (Delivered at Place).

This means that the buyer will be liable for import VAT at their prevailing national rate and for orders over 150€ (including carriage) import duties will become chargeable at your prevailing national rate.

The Duty is ascertained by your national customs authority based on the HS Code of each product. The HS Code is shown in the “European Shipment” section of each product page.


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