Description

Sodium Fluoride 【Molecular formula】: NaF 【Molecular weight】: *1.*9 【Properties】: it is a white crystal with relative density of 2.**8, melting point: **3, boiling point: ***4, It is slightly soluble in water, insoluble in ethanol. Its aqueous sodium hydrogen fluoride 【Uses】: it is used in the manufacture of effervescing steel, and the smelting and refining of light metals. It is also used in fluorination of drinking water, as a wood preservative, an adhesive preservative. An insecticide, a protective coating for metals, a pickle for steels and other metals, a flux for soldering and welding, as well as a flux and pacifier for ceramic, glass and porcelain enamel 【Packing】:*5kg/woven bags with inner plastic lining, or as the request of our customer 【Quality Index】: Index item First Grade Second Grade Third Grade Sodium fluoride contentï&frac*4;ˆNaFï&frac*4;‰%≥ *8 *5 *4 Silicon dioxide contentï&frac*4;ˆSiO2ï&frac*4;‰%≤ 0.5 1.0 1.2 Sulfate contentï&frac*4;ˆSiO4ï&frac*4;‰%≤ 0.5 1.0 2.0 Acidity contentï&frac*4;ˆHFï&frac*4;‰%≤ 0.3 0.5 2.0 Sodium carbonate contentï&frac*4;ˆNa2CO3ï&frac*4;‰%≤ 0.7 3.0 *0 Water insoluble matter content %≤ 0.1 0.1 0.1 Waterï&frac*4;ˆH2Oï&frac*4;‰%≤ 0.5 1.0 1.5