Commodity: Sodium Fluoride Molecular fomula: NaF Molecular weight: 41.99 Density: 2.558 Melting Point: 993C Boiling Point: 1704C H.S. No.:2826.9000 CASNo.:7681-49-4 Sodium Fluoride is mainly used as an additive in starting up aluminium electrobath, the lining iron of the mechanical edge as to increase the strength, the anti-corrosive of timber, enamel, welding rod and tooth paste with F-medicine etc. Appearance: white powder or crystal Assay: 98%min Water Insoluble: 0.5%max Free Acid: 0.2% max Free Alkali: 0.2% max Sulphate: 0.3% max Size:40mesh and 200mesh