Yongjing framework：Fujian Shaowu Yongjing Chemical Co., Ltd.
Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept.
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755
Quality Standard：GB28655-2012
| Molecular Formula：NH4HF2 Molecular Weight：57.05 | |||
|
Item |
Index |
||
|
Top-grade |
First grade |
Qualified product |
|
|
Ammonium Bifluoride (NH4HF2)（dry basis） w/% ≥ |
98.0 |
97.0 |
96.0 |
|
Ammonium fluosilicate［（NH4）2SIF6］ w/% ≤ |
0.5 |
1.5 |
3.0 |
|
Loss on drying w/% ≤ |
1.5 |
3.0 |
4.0 |
|
Ignition residue w/% ≤ |
0.1 |
0.2 |
- |
|
Sulfate（SO4） w/% ≤ |
0.1 |
0.1 |
- |
Properties：
The product is a rhombohedra 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.
Application：
The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Storage：
Moisture-proof and sealed preservation is needed.
Transport：
It should be treated as inorganic poisonous goods.
Packing：
The product is packed in a 25kg polythene plastic bag. Also pack it on consumer requests.
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