KCr3(SO4)2(OH)6: Synthesis, characterization, powder diffraction data, and structure refinement by the Rietveld technique and a compilation of alunite-type compounds
作者： C. L. Lengauer , G. Giester , E. Irran
DOI: 10.1017/S0885715600018984
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摘要: The new compound, KCr3(SO4)2(OH)6, was prepared by low-hydrothermal synthesis. structure refined the Rietveld technique in space group (Z = 3), a =7.2416(3) A, c 17.0788(9) V 775.63 A3, Rp 7.7, Rwp =10.1, RB 6.8. compound is isotypic with alunite, KAl3(SO4)2(OH)6. temperature of decomposition under nitrogen atmosphere to hitherto unknown form about 550 K. water content alunite-type compounds discussed.
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