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Synthesis of potassium manganese oxides under hydrothermal conditions

  • T. Endo (a1), S. Kume (a1), M. Shimada (a2) and M. Koizumi (a2)

Summary

A 1 M solution of potassium permanganate was sealed in a gold capsule and was treated under conditions of temperature and pressure up to 800 °C and 2·5 kb. Different kinds of products were produced under different conditions of synthesis, and potassium manganate, birnessite, cryptomelane, hausmannite, manganosite, and a new phase appeared. The chemical composition of the new phase was determined as K2Mn4O9 and its X-ray powder diffraction pattern was indexed on a hexagonal cell with a 11·295 and c 21·870 Å.

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Bouciaer, (B.), Buhl, (R.), and Perrin, (M.), 197I. Journ. Appl. Phys., 42, 1615-17.
Butler, (G.) and Thirsk, (H. R.), 1952. Acta Cryst., 5, 288–9.
Cole, (W. F.), Wadsley, (A. D.), and Walkley, (A.), 1947. Trans. Electrochem. Soc., 92, 133–58.
Dubois, (P.), 2936. Ann. Chim., 5, 411-82.
Fauling, (G. M.), Zwicker, (W. K.), and Forgeng, (W. D.), 196o. Amer. Min., 45, 946–59.
Hewett, (D. F.), 1971. Econ. Geol., 66, :64-77.
Jones, (L. H. P.) and Milne, (A. A.), 1956. Min. Mag., 31, 283–8.
LAUDISE, , 1961. Progress in Inorganic Chemistry,, 3, 1. New York (Interscience).
Mcmurdie, (H. F.) and Golovato, (E.), 1948. Journ. Res. Nat. Bur. Stand., 41, 589–6oo.
Moore, (T. E.), Ellis, (M.), and Selwood, (P. W.), 1950. Journ. Amer. Chem. Soc., 72, 856–66.
ROY, (R.) and Tuttle, (O. F.), 1956. Physics and Chemistry of the Earth,, 1, ch. 6, 143 (Ed.Ahrens et al.).Oxford (Pergamon Press).
ROY, (S.), 1968. Econ. Geol., 63, 760–8

Synthesis of potassium manganese oxides under hydrothermal conditions

  • T. Endo (a1), S. Kume (a1), M. Shimada (a2) and M. Koizumi (a2)

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