| Molecular formula |
NaF |
| Molecular weight |
41.99 |
| CAS NO |
7681-49-4 |
| Characters |
White crystal powder |
| Use |
Used as screening agent and fusing agent. |
| Specification |
Excellent grade pure, Analytically pure , chemically pure |
| Executive standard |
GB/T 1264-1997 |
| Technical index |
|
Name
|
Excellent grade pure(%)
|
Analytically pure (%)
|
Chemically pure(%)
|
|
Content(NaF)
|
≥99.0
|
≥98.0
|
≥98.0
|
|
Clarity test
|
qualified
|
qualified |
qualified |
|
Water undissolved substance
|
≤0.01
|
≤0.05
|
≤0.1
|
|
loss on drying
|
≤0.3
|
—
|
—
|
|
Acidity(H+),mmol/100g
|
≤2.5
|
≤5.0
|
≤10.0
|
|
Alkalinity(OH-),mmol/100g
|
≤1.0
|
≤2.0
|
≤4.0
|
|
Chloride(Cl)
|
≤0.002
|
≤0.005
|
≤0.01
|
|
Sulfate(SO4)
|
≤0.01
|
≤0.03
|
≤0.05
|
| Fluosilicate (SiF6) |
≤0.1 |
≤0.6 |
≤1.2 |
| Ferrum(Fe) |
≤0.002 |
≤0.005 |
≤0.005 |
| Heavy metal(Pb) |
≤0.001 |
≤0.003 |
≤0.005 |
|
| Packing |
500kg for bottle packing, 40kg for pail packing, 25kg for paper plastic packing |
