Mechanochemical reaction between ammonium fluoride (NH4F) and gallium fluoride trihydrate (GaF3·3H2O) at a ratio of 3:1 is conducted by grinding the mixture at room temperature using a planetrary ball mill. A single phase of ammonium hexafluorogallate ((NH4)3GaF6) is obtained as a product of the reaction. Other alkali hexafluorogallates (K3GaF6, Na3GaF6, and Li3GaF6) also can be synthesized by grinding constituent components (AF and GaF3·3H2O) under proper grinding conditions. A reaction mechanism related to the dissolution of alkali fluorides in water is suggested.
|Number of pages||3|
|Journal||Journal of the American Ceramic Society|
|Publication status||Published - 2004 Sept|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry