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Molecular formula: NH4F Molecular weight: 37.04
Item	Index
	Premium grade	Top-grade	First grade
Ammonium fluoride w/ %≥	98.00	97.00	95.00
Free acid (as HF) w/% ≤	0.05	0.05	0.10
Fluosilicate[as (NH4) 2SiF6]w/% ≤	0.10	0.15	0.15

Properties:
The product is a white powdery 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 products is Packed in a polythene plastic sack. Net weight is 25kg,per sack.