Potassium iodide is a high-grade reagent supplied by Micromaster. Few other chemical names used to denote this reagent include, Pima, Kali iodide and Thyro-Block. It is available in the form of a white deliquescent crystals which are odourless. It may turn yellow, if exposed to the air for a long time. It is soluble in water and has a bitter (strong) taste. Potassium iodide is stable if stored according to the recommended conditions. If exposed to excessive heat or in case of burning, it can generate hazardous decomposition products like hydrogen iodide. This product is moisture (hygroscopic), light and air sensitive. Air causes potassium iodide to decompose to iodine. It also attacks metals in moist environments. It is incompatible with strong oxidising agents, salts of alkaloids, chloral hydrate, calomel (mercurous chloride), potassium chlorate, tartaric and other acids.

• CAS No. 7681-11-0
• Quantity provided: 100 g/pack
• Molecular formula: KI
• Molecular weight: 166.003 g/mol

Potassium Iodide is a metal halide composed of potassium and iodide with thyroid protecting and expectorant properties. Potassium iodide can block absorption of radioactive iodine by the thyroid gland through flooding the thyroid with non-radioactive iodine and preventing intake of radioactive molecules, thereby protecting it from cancer causing radiation. It is used as a nutritional supplement in human diet and animal feeds. Potassium iodide is used with silver nitrate to make silver iodide (AgI), an important chemical in film photography. It is also used as a fluorescence quenching agent in biomedical research, an application that takes advantage of collisional quenching of fluorescent substances by the iodide ion. Potassium iodide is also used in the organic synthesis of aryl iodides in the Sandmeyer reaction, starting from aryl amines.