Character & Purpose: It is a white crystal. Its aqueous solution will etch
glass. It is used in welding flux, toothpaste additive, preservative .
Packing: 25 Kg net, PP woven bags with double PE inners.
Formula: NaF
Standard:
| Item | Spec. | Typical Results |
| NaF/% | 98.0 Min. | 98.8 |
| Water-insoluble matter/% | 0.5 Max. | 0.2 |
| Free acid(HF)/% | 0.1 Max. | 0.03 |
| Free base(Na2CO3)/% | 0.2 Max. | 0.1 |
| Sulfate(SO4)/% | 0.2 Max. | 0.1 |
| Silicate(SiO2)/% | 0.5 Max. | 0.23 |
| H2O/% | 0.5 Max. | 0.21 |
| Heavy metal (Pb)/% | 0.005 Max. | 0.002 |
| Fe/% | 0.005 Max. | 0.0008 |
| As/% | 0.0005 Max. | 0.0001 |