Properties:
It is a white powder or crystal. Its relative density is 2.558, m.p. 993°Cand b.p. 1704°C. It is insoluble in ethanol and has toxic. Its aqueous solution will etch glass.
Specification:(%)
| Toothpaste-grade | High-grade | |
| NaF | 99.0 min. | 98.0 min. |
| Water-insoluble matter | 0.1 max | 0.5 max |
| Free acid (HF) | 0.1 max | 0.2max |
| Free base (Na2CO3) | 0.1 max | 0.2max |
| Sulfate (SO4) | 0.2 max | 0.3 max |
| Silicate (SiO2) | 0.5 max | 0.4 max |
| H2O | 0.5 max | 0.5max |
| Heavy metal (Pb) | 0.005max | |
| Fe | 0.005max | |
| As | 0.0005max |
Application:
It is used in welding flux, toothpaste additive, preservative, bactericide, slagging medium of metallurgy, adhesive, papermaking and construction industry.
Packaging, Storage and Transportation:
Storage: Store in seal Hermetically.
Packing: 25Kg net, pack sealed with double plastic bags lined plastic woven sack.
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