Used as an oxidizer in some pyrotechnic compositions to produce red-colored flames, commonly in flares and signal devices. Employed in thermal energy storage systems due to its high solubility and heat capacity when mixed with other salts. Serves as an additive in lithium-ion battery electrolytes to improve the stability and performance of the electrode interface. Utilized in concrete admixtures to accelerate the curing process, especially in cold weather conditions. Applied in air treatment systems to control humidity, as it readily absorbs moisture from the air. Used in research and industrial processes involving molten salt systems for heat transfer and storage applications.