Sodium fluoride, an inorganic compound with chemical formula of NaF, is mainly used in various fields such as phosphating accelerator, agricultural insecticide, sealing material, preservative, etc. in the coating industry. Sodium fluoride: colorless shiny crystal or white powder, the aqueous solution is weakly alkaline, soluble in hydrofluoric acid to form sodium hydrogen fluoride, which can corrode glass. Sodium fluoride is an important fluoride salt and is the raw material for manufacturing other fluorides.