|
 |
| Industrial hydrofluoric
acid |
| Molecular formula: |
HF |
| Molecular weight: |
20.01 |
| Properties: |
Clear colorless fuming liquid, highly volatile |
| Use: |
The materials for producing organofluoride and inorganofluoride,
glass etching, dull polish etc.. Also used in cleaning metal
surface.
|
| Product quality:voluntary standards
GB7747-97 |
Index name |
Top grade |
First grade |
Second grade |
F-40 |
F-40 |
F-55 |
F-60 |
F-40 |
F-55 |
F-60 |
| Content(based on HF)%,≥ |
40 |
40 |
55 |
60 |
40 |
55 |
60 |
| Fluosilicic acid(based on H2SiF6)%,≤ |
0.02 |
0.2 |
0.4 |
0.5 |
0.6 |
1.0 |
1.0 |
| Sulphate (based on SO4)%,≤ |
0.02 |
0.05 |
0.08 |
0.1 |
0.6 |
0.8 |
1.0 |
| Iron (Fe)%,≤ |
0.005 |
0.1 |
- |
- |
- |
- |
- |
|
|
|
 |
