Description

1ã??Molecular FormulaïÂ&frac*4;?NH4HF2 Molecular WeightïÂ&frac*4;? *7.4 H.S. CodeïÂ&frac*4;?*******0 UN No.ïÂ&frac*4;? ***7 ClassïÂ&frac*4;?8 2ã??Quality StandardïÂ&frac*4;?ïÂ&frac*4;?HG/T********9ïÂ&frac*4;? Grade Excellent Grade 1ST. Grade Content(NH4HF2)%ïÂ&frac*4;?â?Â¥ *8.0 *5.0 Residue after Ignition%, â?¤ 0.2 0.2 Sulfate (base on SO4), â?¤ 0.1 0.1 Fluosilicate (base on SiO3)%â?¤ 2.0 *3ã??PropertiesïÂ&frac*4;? Colourless or white transparent (frontal intersect) crystalline with litter sour; specific gravity 1.*2(*0/4);boiling point **0;melting point **4.6, It is easy to deliquesce in air, and extremely easy to dissolve in cold water. It dissolves slightly in alcohol. Under the higher temperature, it can sublimate and it has corrosiveness to glass. 4ã??Usage: Used as acid treatmeating of oil field and making magnesium and magnesium alloy. It can be used as light-eliminating, frost-producing and etchant of glass. It can also be used as protective agent of wood, brightening agent of aluminum, rustremoval agent which used in textile industry and analytical reagent etc. Again, it can be used in electroplate and electronics industry. 5ã??PackingïÂ&frac*4;? PE bag in woven sack, *5kg net each.