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Ammonium hydrogen difluoride

Name:Ammonium hydrogen difluoride
Other Name:Ammonium bifluoride
CAS NO:1341-49-7

Molecular Formula:NH4HF2
Molecular Weight:57.04
Property:White,rhombus or flake crystal,poisonous,hardly dissolved in alcohol,stable in dry state,the aqueous solution is acidity,deliquescence in air,causticity on glass.
Assay:≥98.5%
Impurity level:
Impurity nameIndex
Chloride(Cl)≤0.1%
Sulfate(SO4)≤0.05%
Silicate(SiO3)≤0.6%
Lead(Pb)≤0.005%
Iron(Fe)≤0.01%
Ignited Residue≤0.1%
Usage:used as analytical reagent,bacterium inhibitor,engraving pottery and glass ,and treating surface of Si-Iron.
Packing :25kg plastic woven bag.
Caution at transportation:Damp-proof, inorganic toxicant. UN No.: 1727. Specified number of hazardous goods: 83019.
Class of risk:8 Packing: grade II