Potassium chloride is used to replenish electrolytes and restore water electrolyte balance in treating hypokalemia. It is also used in buffers, fertilizers and explosives and finds useful in medicine, scientific applications, and food processing. It plays an important role for the extraction and solubilization of proteins. It acts as a fire extinguishing agent in portable and wheeled fire extinguishers. It may be used as a softener unit in household water, which is an alternative to sodium chloride.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.