Investigation of physicochemical and technological properties of sodium tetrafluoroaluminate

Growth of KAlF4 and Na5Al3F14 Aluminum Fluoride Single Crystals by Bridgman Method

“…At 705 ℃, an obviously endothermic peak is noted due to the crystal melt. [ 16 ] It can be noted that there appears a very small endothermic peak at about 510 ℃. The peak is probable to the melting endothermic of other few fluoride impurities which may be formed by parasitic nucleation on the surface of the crucible.…”

“…According to the phase diagrams of systems AlF 3 ‐KF [ 15 ] and AlF 3 ‐NaF, [ 16 ] both KAlF 4 and Na 5 Al 3 F 14 belong to incongruently molten compounds. A modified Bridgman approach was applied to grow the single crystal KAlF 4 .…”

Prospects of the use of sodium tetrafluoroaluminate as a correcting additive to electrolyte in aluminum baths

“…Thermodynamic analysis of the equilibrium state of the NaF-AlF 3 system [5], which was performed using the Gibbs energy minimization method, made it possi ble to clarify the conflicting experimental data on the phase diagram ( Fig. 1) and to study the melt composi tion.…”