The melting point of potassium chloride, or KCl, is 1,419.8 degrees Fahrenheit, or 771 degrees Celsius. Potassium chloride boils at 2,732 degrees Fahrenheit, or 1,500 degrees Celsius. The white, granular powder is odorless and tastes like salt. The substance dissolves in water and glycerin and slightly dissolves in alcohol.
The substance is found abundantly in nature. Potassium chloride has medical uses as an intravenous fluid to maintain electrolyte levels. The chemical is also used as a substitute for table salt and as a nutritional supplement for people with deficient potassium levels. Potassium is necessary for cellular function, cardiac activity, renal balance and neural transmission. Potassium deficiency leads to muscle weakness, nausea, vomiting and mood swings.