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| Industrial hydrofluoric acid |
| Molecular Formula： |
NH4F |
| Molecular weight： |
37.04 |
| Properties： |
White needle crystal , it is easy to deliquesce, blocking；water soluble, alcohol slightly soluble, dissolve to ammonium acid fluoride, heated to generate ammonium and Hydrogen fluoride, water solution is acid, corrosive to glass. |
| Use： |
Glass anti-corrosive agent, wood or wine antiseptic agent, disinfectant, Analysist agent and so on. |
| Quality：manufacture standard |
Index |
Superior gade |
First class |
Second class |
| Ammonium fluoride content(NH4F)%, ≥ |
98.0 |
96.0 |
95.0 |
| Sulphate salt(counted with SO4)%, ≤ |
0.1 |
0.18 |
0.2 |
| Fluosilicate(counted with SiF6)%, ≤ |
2.0 |
2.5 |
3.0 |
| Burning residues%, ≤ |
0.15 |
0.2 |
0.25 |
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| Package： |
Plastic knitting bag with high pressure PVC bags inner, Net weight per bag 25kg. |
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