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METHOD OF COULOMETRIC DETERMINATION OF FORMALDEHYDE AND COPPER IN TRILONAT ELECTROLYTES OF CHEMICAL COPPER PLATING
METHOD OF COULOMETRIC DETERMINATION OF FORMALDEHYDE AND COPPER IN TRILONAT ELECTROLYTES OF CHEMICAL COPPER PLATING
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机译:电量法测定化学镀铜的三乙酸电解液中的甲醛和铜。
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the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to analytical chemistry and can be used u0434u043bu00a0 industrial u043au043eu043du0442u0440u043eu043bu00a0 processes of chemical u043cu0435u0434u043du0435u043du0438u00a0. to improve the accuracy and u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 u044du043au0441u043fu0440u0435u0441u0441u043du043eu0441u0442u0438 analysis. in the determination of formaldehyde and of copper in the sample u0432u0432u043eu0434u00a0u0442 0.5 - 3.0 ml of 0.05 n.solution u0442u0438u043eu0441u0443u043bu044cu0444u0430u0442u0430 u043du0430u0442u0440u0438u00a0 and lead u043au0443u043bu043eu043du043eu043cu0435u0442u0440u0438u0447u0435u0441u043au043eu0435 u0442u0438u0442u0440u043eu0432u0430u043du0438u0435 his balance u044du043bu0435u043au0442u0440u043eu0433u0435u043du0435u0440u0438u0440u043eu0432u0430u043du043du044bu043c iodine by electrolysis dc j = 3 - 6 ma, the ultimate fact u0447u043au0438 u0442u0438u0442u0440u043eu0432u0430u043du0438u00a0 formaldehyde within 1 - 2 to turn off the current electrolysis, u0434u043eu0431u0430u0432u043bu00a0u044eu0442 1 - 5 ml of 0.5 - 1.5 m solution of sulphuric acid and from 1 to 6 min u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 copper.method u043fu043eu0437u0432u043eu043bu00a0u0435u0442 u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u0442u044c control industrial process of chemical u043cu0435u0434u043du0435u043du0438u00a0 and make timely adjustment and the regeneration of the electrolyte, gives to accelerate the analysis process and improve the accuracy of u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0. 1, table 2).
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