Product name: Ammonium bifluoride
Molecularweight:57.04Execute standard: National standard/GBApperance:white solid
Melting point:125.6 °C (decomp.)Application:
Ammonium bifluoride is a component of some etchants.
Potassium bifluoride is a related more commonly used etchant.
Ammonium bifluoride www.fluoride-fluorid.com/products/Inorganic-Fluorides/Ammonium-bifluoride/ has been considered as an intermediate in the production of hydrofluoric acid from hexafluorosilicic acid. Thus, hexafluorosilicic acid is hydrolyzed to give ammonium fluoride.
The resulting ammonium bifluoride is converted to the sodium bifluoride, which thermally decomposes to release HF.