Sodium Fluoride

Physicochemical properties: colorless shiny crystals or white powder, specific gravity 2.25, melting point 993 °C boiling point of 1695 °C. Soluble in water, hydrofluoric acid, micro-and into the alcohol. Star weakly alkaline aqueous solution, soluble in sodium hydrogen fluoride hydrofluoric acid formed can be corrosion of the glass. Toxic! Main use: Painting industry as phosphate accelerator, so that phosphate solution stability, phosphate refinement, improved performance of phosphate coating. Phosphate in the closure of aluminum and its alloys have a significant negative harm catalytic Al3 +, so that phosphate smooth wood preservatives, agricultural pesticides, fungicides brewing industry, medicine, welding flux, metal smelting, ceramics pigments, antiseptics for timbers, amps, booster solvent, adsorbent of UF3 in nuclear industry, alkaline zinc salts additives and enamel, manufacture of enamel, pest repellent agent, rat poison, wood and food preservation agent, distilling ethanol, preservatives, anti-fermentation agents, paper and so on. Specification : National Standard(%): ≥ 98 98(SiO2) Actual measured value (%): ≤ 0.5 0.5(SiO4) Sodium fluoride(NaF): ≤ 0.3 0.3 Acidity(HF): ≤ 0.1 0.1 Water insoluble substance: ≤ 0.5 0.7 Water(H2O): ≤ 0.5