Potassium Iodide 99.9% BP, EP, USP

Potassium Iodide 99.9% is an inorganic compound with the chemical formula KI. It is a highly pure, crystalline salt composed of potassium and iodine, noted for its stability and reactivity. This white salt is the most commercially significant iodide compound.

BP, EP, USP Grade: conforms to British Pharmacopoeia (BP), European Pharmacopoeia (EP), and United States Pharmacopoeia (USP) standards.

No Additives: We prioritise purity, delivering only the highest quality for our customers - you can trust that our product contains no preservatives or additives.

Manufactured in the UK: Our Potassium Iodide 99.9% is sourced and packaged using non-toxic, chemical resistant containers, providing reliable and trusted quality to our customers.

Frequent Uses

Lugols Solution Production

Potassium Iodide is a key ingredient in Lugol’s Iodine Solution, used extensively in applications such as gram staining and gold surface etching.

Photography and Film Processing

In Photography it is sometimes used as a stabiliser, aiding in the development and preservation of photographic images.

Sandmeyer Reactions

The Sandmeyer reaction uses Potassium Iodide to convert aromatic amines into aryl iodides by substituting a diazonium salt intermediate with iodine, making it an essential method for introducing iodine onto aromatic rings in synthetic organic chemistry.

Strong Reducing Agent

Combined with an acid, Potassium Iodide generates Hydroiodic Acid (HI), a strong reducing agent widely used in synthetic reactions to reduce organic compounds.

Starch Indicator in Chemical Testing

When combined with starch, Potassium Iodide is used as an indicator. The iodine-starch complex it forms is highly visible as a deep blue or purple, helping to signal the end point in redox titrations.

Conforms to BP, EP, USP grade

The major uses of KI include use as a nutritional supplement in animal feeds and also the human diet.

Used to Make Lugols iodine Solutions for all applications

offers Thyroid protection during medical treatment

offers Thyroid protection from Nuclear Radiation

A precursor to silver iodide (AgI) an important chemical in film photography.

A component in some disinfectants and hair treatment chemicals.

Is also used as a fluorescence quenching agent in biomedical research

Assay: 99.0 - 101.50%
M.F.: KI
M.W.: 166.0 g/mol
M.P.: 681 °C
Iodate (as KIO3): <0.0004%
Thiosulphate and Barium: 0.002%
Total Notrogen: <0.001%
Heavy Metals (as Pb): <0.001%
Loss on Drying: <1%
Organic Volatie Impurities: Passes Test

Cas Number: 7681-11-0

Einecs Number: 231-659-4

HS Code / Commodity Code: 2827600010