Фторид натрия 98% NaF (40-120mesh & 150

Sodium Fluoride 7681-49-4 NaF Molecular formula: NaF Molecular weight: 42 Standard: GB4293-84 CAS No.: 7681-49-4 Properties: it is a white powder or crystal, it is relative density is 2.56, melting point 993 and bolting point 1704. it is insouble in ethanol and toxic, its aqueous solution will etch glass. Spec. 1) Crystalloid 40-120mesh parameter data Food grade & Dentifrice grade Industry first grade Content(NaF)%>= 99 98 SiO2%<= 0.4 0.5 Na2CO3%<= 0.1 0.5 SO4%<= 0.1 0.3 Water insouble matter%<= 0.3 0.5 Acidity (HF)%<= 0.1 0.1 Moisture(H2O)%<= 0.2 0.5 Heavy metal(Pb) 0.005 2) Powder 150-240mesh parameter data Industry grade Content(NaF)%>= 98 SiO2%<= 0.5 Na2CO3%<= 0.5 SO4%<= 0.3 Water insouble matter%<= 0.7 Acidity (HF)%<= 0.1 Moisture(H2O)%<= 0.5 Usages: 1) NaF is an important fluoride, used as pesticides and bactericides in agriculture 2) Used as wood conservative, water treatment agent, ceramic pigment and fluoride treament of light metal 3) Used as UF2 adsorbent in neclear industry 4) Used as materials for making other fluoride chemicals, in enamel industry, medical industry, paper making industry, building materials etc.