Acid ammonium fluoride

Chemical formula: NH4F * HF
Synonym: ammonium bifluoride, hydrofluoride
International name: AMMONIUM BIFLUORIDE
CAS No: 1341 - 49 - 7
Qualification: Imp. , "h" GOST 9546 - 75
Appearance: white crystals
Packing: bags, 25 kg
Storage conditions: in the dry, well aired room, separately from acids and alkalis
Specification

Molecular weight 57.04

Solubility 41.5gr/100gr waters at 25ºС

Density 1.51

rn 3.5 (5% solution)

Boiling temperature 240ºС

Melting temperature 124.6ºС

Content of the main substance, % , not less than 98 (on fakt.98,2% )

Mass fraction of sulfates, % , no more than 0,12 (on the fact. 0,06% )

The rest after calcinating, % , no more than 0,2 (on the fact. 0,08% )

Contents fluorine - silicate, % , no more than 0,7 (on fakt.0,55% )

Losses during the drying, % , no more than 1,6 (on fakt.1,51% )

Description
AMMONIUM BIFLUORIDE (Acid ammonium fluoride) - colourless, poorly hydroscopic crystals with rhombic lattice.
Application
Acid ammonium fluoride is applied:
• for etching of glass instead of bifluoride of ammonium fluoride and etching acid
• increases in oil recovery (debit) in wells;
• dissolution of sand in oil wells;
• washings of oil pipelines.
• as the disinfecting agent by production of alcohol;
• as industrial antiseptic agent (inhibitor of bacteria) and the anticorrosive agent at fermentation, etc.