Abstract
The synthesis of HAu(SeO 4) 2 and MAu(SeO 4) 2, where M is K, Rb or Cs, is described. The synthesis of Au 2O 3 · 5.2H 2O, as a starting substance for double selenates, is presented also. The synthesized compounds were investigated by chemical and thermal analysis. The chemical compositions of the samples were confirmed and reactions of thermal decomposition were determined.
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