It is widely employed as a water softener, an electrolyte, as a good conductor in electrolysis, as a primary standard for acid-base titrations and mostly as a buffer component in applications such as chromatography, capillary electrophoresis and enzyme catalysis. Also used in glass manufacture, detergent manufacture, sodium chemicals, carbonate chemicals manufacture, pulp and paper, brine treatment, flue gas desulfurization, coal treatment and ion exchange resin regeneration.

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.