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Potassium nitrate has several applications. It is used as an oxidizer, food preservative, fertilizer, and an active ingredient of condensed aerosol fire suppression systems. It is a powerful nitrating agent in sulfuric acid medium. In addition, it also used as an electrolyte in a salt bridge and thermal storage medium in power generation systems. Ternary salts containing potassium nitrate have been reported to improve the heat storage capacity in the molten salts.
Wanga, Y.; Xua, G.; Yangb, L.; Rena, Z.; Weia, X.; Wenga, W.; Dua, P.; Shena, G.; Han, G. Hydrothermal Synthesis of Single-Crystal Bismuth Ferrite Nanoflakes Assisted by Potassium Nitrate. Ceram. Int. 2009, 35 (3), 1285-1287.
Wang, Y.; Huang, W. Y.; Chun, Y.; Xia, J. R.; Zhu, J. H. Dispersion of Potassium Nitrate and the Resulting Strong Basicity on Zirconia. Chem. Mater. 2001, 13 (2), 670-677.
Carrascull, A. L.; Ponzi, M. I.; Ponzi, E. N. Catalytic Combustion of Soot on KNO3/ZrO2 Catalysts. Effect of Potassium Nitrate Loading on Activity. Ind. Eng. Chem. Res. 2003, 42 (4), 692-697.
Hazard Statements: H272-H303
May intensify fire; oxidizer. May be harmful if swallowed.
Precautionary Statements: P221-P210v-P220-P280a-P312a-P501a
Take any precaution to avoid mixing with combustibles. Keep/Store away from clothing/combustible materials. Wear protective gloves and eye/face protection. Dispose of contents/container in accordance with local/regional/national/international regulations.