Mechanochemical synthesis of ammonium hexafluorogallate

Jinfeng Lu, Qiwu Zhang, Jun Wang, Fumio Saito

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1814-1816
Number of pages3
JournalJournal of the American Ceramic Society
Issue number9
Publication statusPublished - 2004 Sept

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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