Abstract
The formation of CdSnO3 and Cd2SnO4 from cadmium and tin oxides in closed vessels was studied over a range of temperature by thermal analysis, X-ray powder diffraction and electron spectroscopy. The results, presented in diagrammatic form, enable suitable reaction conditions to be chosen for the formation of either stannate in the monophase form. ESCA and SIMS examination of the reactants and products indicates that the commercial CdO starting material contains small amounts of carbonate and suboxide impurities, which however have no effect on the formation of the final product. Electron spectroscopy also indicates that the cadmium stannates, once formed, are significantly more resistant to atmospheric carbonation or hydration than is the parent CdO.
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