Appearance and properties: colorless or white crystal. Melting point (°C): 1040, relative density (water=1): 1.91, boiling point (°C): 1537, molecular formula: AlF3, molecular weight: 83.98, saturated vapor pressure (kPa): 0.13 (1238°C) , Solubility: Insoluble in water, acid, alkali, insoluble in most organic solvents.

In the aluminum electrolysis industry, it is used to reduce the melting temperature of the electrolyte and increase the conductivity. It is used as a flux for non-ferrous metals, a flux for ceramic glazes and enamel glazes and a component of glazes, and an inhibitor of secondary fermentation in essential oil production. .

Used as an inhibitor of secondary fermentation in alcohol production. In the new energy material industry, adding 1% Aluminum Fluoride AlF3 products in the process of preparing lithium manganese oxide, the positive electrode material of lithium batteries, can improve the high temperature cycle performance of lithium manganese oxide batteries.