aluminium fluoride

Description

Formula:AlF3 Molecular Weightï&frac*4;š*3.*8 Propertiesï&frac*4;š It is a white crystal or powder with relative density of 2.**2(*5℃). It is insoluble in most organic solvents, hydrofluoric acid and liquid HF. It is stable, even doesn&#**9;t react with liquid ammonia and concentrated sulfuric acid by heating to fuming, isn&#**9;t changeable when co-melted with KOH and can&#**9;t be reduced by hydrogen. It doesn&#**9;t decompose through heating, but sublime. The sublimation temperature is ***1℃. It decomposes partly to HF and aluminium oxide at ******0℃. It is toxic. Usagesï&frac*4;šIt is used in electrolyzing bath in the aluminium production to decrease the melting point and increase the conductivity of electrolytes, as a zymotic inhibitor in the alcohol production, as a flux for glaze and enamel of pottery, also as a flux for non-iron metal, in fluxing solution of metal jointing, in the manufacture of optical lens. It is also used as catalyst in organic synthesis, as material of synthetic cryolite. Execute standardï&frac*4;šGB/T********9 Packingï&frac*4;šIn *5kg plastic woven bag lined with high pressure polyethylene plastic bag. Storage and transportationï&frac*4;šGB*******0 poison article ****3 UN NO.***9