Аммония Гексафтороалюмина

Химические свойства

White crystalline powder

Использование

preparation of pure aluminum fluoride.

Профиль безопасности

Poison by intravenous route. When heated to decomposition it emits very toxic fumes of F-, NOx, and NH3. See also ALUMINUM COMPOUNDS and FLUORIDES.

Синтез

Freshly precipitated hydrated aluminum oxide is introduced portionwise into a hot, rather concentrated NH4F solution. A gelatinous precipitate results which settles easily when the solution is boiled down. The supernatant liquid is decanted or suctionfiltered, and the precipitate is washed with an alcohol-water solution and dried at 105°C.