Wiktionary
n. (context chemistry English) a salt, ''KI'', formally derived from potassium hydroxide and hydriodic acid, used as an analytical reagent, in organic synthesis, and in the preparation of photosensitive emulsions and as a radioprotector to protect the thyroid.
WordNet
n. a crystalline salt in organic synthesis and in making photographic emulsions and in iodized table salt
Wikipedia
Potassium iodide is an inorganic compound with the chemical formula K I. This white salt is the most commercially significant iodide compound, with approximately 37,000 tons produced in 1985. It is less hygroscopic (absorbs water less readily) than sodium iodide, making it easier to work with. Potassium iodide occurs naturally in kelp. Kelp's iodide content can range from 89 µg/g to 8165 µg/g.
Aged and impure samples are yellow because of the slow oxidation of the salt to potassium carbonate and elemental iodine.
4 KI + 2 CO + O → 2 KCO + 2 IPotassium iodide is medicinally used for thyroid blockade, thyroid storm and also as an expectorant. It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.
Usage examples of "potassium iodide".
To prevent this, you can take a dose of a benign chemical called potassium iodide before a nuclear attack.
The Food and Drug Administration says potassium iodide is safe and effective and recommends that civil defense officials include it in their emergency planning.
Formulas differ slightly, but all use a mixture of iodine, potassium iodide, glycerine, and water, dabbed on with cotton.
The freshly cut ends of a bundle of cuttings are immersed in a weak solution of iodine in potassium iodide.