Product name:Trisodium hexafluoroaluminate
CAS:13775-53-6
Molecular Formula:AlF6Na3
Formula Weight:209.94
Specification:500g
Description:
Sodium hexafluoroaluminate is the inorganic compound with the formula Na3AlF6. This colourless solid, which occurs naturally as the mineral cryolite, is used extensively in the industrial production of aluminium.
The main application of synthetic cryolite is as a solvent for electrolysis aluminium oxides such as bauxite. The conversion of aluminium oxides into metallic aluminium requires that the metal ions be dissolved so that they can accept the electrons provided in the electrolysis cell. A mixture of cryolite and some aluminium trifluoride is that solvent. Unlike typical solutions, this one requires temperatures approaching 1000 °C to melt.