Molecular formula: KBF4 Molecular weight: 125.90 Prooerties: white crystalline particles, slightly soluble in water, alcohol and hot ethanol, insoluble in alkali solution, can be decomposed into three boron fluoride acid, and alkali metal carbonate eutectic, generation of fluoride and borate. Melting point: 530 ℃ Content: 99% Use: analysis reagent, flux, making three boron fluoride, aluminum and magnesium die casting materials used, electrical engineering and chemistry experiment.