Sodium fluoride
Molecular formula:NaF
Molecular weight :41.99
Properties: colorless bright crystal or white powder . Sg :2.558, Melting point :993℃,
Uses: preservative insecticide, preservative , flux, or used in papermaking and toothpaste.
Quality standard:
Index name |
Toothpaste grade |
Assay % |
≥99.0 |
Water insoluble matter % |
≤0.1 |
Silicon dioxide (SiO2)% |
≤0.2 |
Sulfate (SO4)% |
≤0.3 |
Heavy metals(Pb)% |
≤0.001 |
Free acid (HF)% |
≤0.05 |
Free alkali (Na2CO3)% |
≤0.1 |
Loss on dry % |
≤0.2 |
Fineness on 200 mesh % |
95.0 |
Packing:net wt. 25kg paper bag .
