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METHOD FOR OBTAINING CHROMIUM (III) ARSENATE
METHOD FOR OBTAINING CHROMIUM (III) ARSENATE
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机译:获得砷酸铬(III)的方法
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摘要
the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to inorganic chemistry, in particular to a method u043fu043eu043bu0443u0447u0435u043du0438u00a0 u0430u0440u0441u0435u043du0430u0442u0430 chromium (3), u043fu0440u0438u043cu0435u043du00a0u0435u043cu043eu0433u043e as antiseptic u0434u043bu00a0 impregnation of wood. to the suspension of the oxide u043cu044bu0448u044cu00a0u043au0430 (3) in the u043fu043eu0441u0442u043eu00a0u043du043du043eu043c u043fu0435u0440u0435u043cu0435u0448u0438u0432u0430u043du0438u0438 u0434u043eu0431u0430u0432u043bu00a0u044eu0442 dichromates u043au0430u043bu0438u00a0 K2CR2O1 solution, heated to 55 - 60u0441. u0440u0435u0430u043au0446u0438u00a0 u044du043au0437u043eu0442u0435u0440u043cu0438u0447u0435u0441u043au0430u00a0, u043eu0431u0440u0430u0437u0443u0435u0442u0441u00a0 green sludge.the contents of the pot heated to 80 95u0441 2 h, then cooled and u0434u0435u043au0430u043du0442u0438u0440u0443u044eu0442 centrifuge water. as a result of drying at room temperature to obtain chromium arsenate u043fu043eu0441u0442u043eu00a0u043du043du043eu0439 mass (3) CRASO4. 2H2O in the form of a powder.the invention u043fu043eu0437u0432u043eu043bu00a0u0435u0442 shorten process from a few days up to 2 h, and the output u0441u043eu0445u0440u0430u043du00a0u0435u0442u0441u00a0 at level 96 - 98%, the content of core in u0435u0449u0435u0441u0442u0432u0430 product at the level of 99%. 1, table 2).
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