Hydrofluoric Acid
Specification 647 РК 30054230-920-2001
| Description | Grade А | Grade В | Grade Г |
| HF fraction of total mass, %, min | 35.5+0.3 | 40.0+0.4 | 40.0+0.4 |
| H2SiF6 fraction of total mass, %, max | 0.025+0.005 | 4.5+0.4 | 7.5+0.6 |
| H2SO4 fraction of total mass,%, max | 0.01+0.002 | 1.8+0.1 | 4.5+0.2 |
| Fe fraction of total mass, %, max | 0.007+0.001 | 0.02+0.003 | - |
| Cl fraction of total mass, %, max | 0.06 | - | - |
| Nonvolatile elements fraction of total mass, %, max | 0.3+0.03 | - | - |
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| Массовая доля MgF2, % | >98,9 |
| Потери при прокаливании | <1,44 |
| Остаток на сите + 0,4 мм | <1,0% |
