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| Industrial hydrofluoric acid |
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| Item |
Top-grade |
First grade
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Qualified product |
| HF-40 |
HF-70 |
HF-40 |
HF-55 |
HF-40 |
HF-55 |
| Appearance |
colorless transparent solution |
| Hydrogen fluoride %≥ |
40.0 |
70.0 |
40.0 |
55.0 |
40.0 |
55.0 |
| Fluorosilicic acid %≤ |
0.02 |
0.02 |
0.2 |
0.5 |
2.5 |
5.0 |
| Involatile acid(as H2SO4 )
%≤ |
0.02 |
0.02 |
0.05 |
0.08 |
1.0 |
2.0 |
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| Special specifications of Industrial hydrofluoric acid are available |
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