It is used in the manufacture of chemical products such as sodium sulfide, ultramarine, and sodium silicate, in the manufacture of sulfate pulp in the paper industry, as a substitute for soda ash in the glass industry, and as a filler in the dye industry. It is used as a dyeing aid in the printing and dyeing industry, as a laxative and an antidote for barium salt poisoning in the pharmaceutical industry. It is widely used as an inorganic powder produced as a transparent filler masterbatch.