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AMMONIUM BIFLUORIDE
addtime：2010-4-27　　from：　　　Reads：4375

AMMONIUM BIFLUORIDE
Molecular formula: NH4F·HF
Molecular weight: 57.05
Item
Index
Top-grade
First grade
Qualified product
Ammonium bifluoride (NH4HF2) (as dry) w/%    ≥
98.0
97.0
96.0
Loss on dry w/%                        ≤
1.5
3.0
4.0
Residue on ignition w /%                       ≤
0.1
0.2
－
Sulfate (as SO4) w/%               ≤
0.1
0.1
－
Ammonium fluosilicate[ (NH4) 2SiF6]w/% ≤
0.5
1.5
3.0

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.

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 polythene plastic sack.Net weight is 25kg,per sack.
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