 Reagent Ammonium Fluoride
Properties: white crystal or particle with strong hygroscopic property. It is soluble in water and slightly soluble in alcohol, and hydrolyze on meeting heat or heat water. It is corrosive to glass and toxic.
Uses: used as analytic reagent, for example, the trace measurement of zirconium; the enchasing of glass; as corrosive inhibitor, chemical polishing agent and masking agent.
Quality Index
| Item |
Excellent Grade |
AR |
CP |
| Ammonium Fluoride(NH4F) |
96.0% |
96.0% |
95.0% |
| Transparency Test |
passed |
passed |
passed |
| Ignition Residue(as Sulfate) |
0.02 |
0.02 |
0.05 |
| Free Acid(as NH4HF2) |
0.2 |
0.5 |
1.0 |
| Free Alkali |
passed |
passed |
passed |
| Chloride(Cl) |
0.005 |
0.005 |
0.01 |
| Sulfate(SO4) |
0.005 |
0.01 |
0.02 |
| F luorosilicate(as SiO2) |
0.08 |
0.30 |
0.60 |
| Iron(Fe) |
0.0005 |
0.002 |
0.004 |
| Heavy Metals(as Pb) |
0.0005 |
0.001 |
0.001 |
|
