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Properties: The product is a rhombohedral or flaky crystal.It can deliquesce easily and dissolve easily in water.It can dissolve in alcohol slightly.It can be resolved when it is affected by the heat or it is in hot water.It can corrode glass.It's poisonous.
Ammonium bifluoride , Ammonium hydrogen difluoride , Ammonium difluoride
Quality Standard
| Index name | A | B | C |
| Assay(NH4HF2),% ≥ | 98.0 | 97.0 | 95 |
| Loss on dry , % ≤ | 1.6 | 3.0 | 5.0 |
| Residue on ignition, % ≤ | 0.1 | 0.2 | 0.2 |
| Sulfate, % ≤ | 0.1 | 0.1 | 0.1 |
| Ammonium fluosilicate[(NH4)2SiF6]Assay, % ≤ | 0.8 | 2.0 | 4.0 |
Application: The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Ammonium hydrogen difluoride