In food and beverage industry as a chemical leavening agent, pH control agent, processing aid (in extruded foods), ingredient in instant powder drinks, etc.
Component of fire-extinguisher powders.
In chemistry: catalyst in polymerization of synthetic fibres or dehydrogenation of olefins, in water-based adhesive resins and coatings, high-temperature polymer blowing agents.
In detergents, in cosmetic products.