ymm) 99(e) electroplating, (el electrophoretic coating, a electrolysis of adiponitrile, and g 03 The reaction of oxidizi

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Ymm 99 E Electroplating El Electrophoretic Coating A Electrolysis Of Adiponitrile And G 03 The Reaction Of Oxidizi 1 (91.63 KiB) Viewed 59 times

ymm) 99(e) electroplating, (el electrophoretic coating, a electrolysis of adiponitrile, and g 03 The reaction of oxidizing Cr3+ ions in the electrolytic cell where the separator was installed to produce Cr2072 was carried out at a current density of 1500 Am-2 in a sulfuric acid electrolyte. The electrode reaction is as follows Oxidized electrodes: 2Cr3+ + 7H20 Cr207 + + 14H+ + 6e Reduction electrode: 6H+ + 6e → 3H2 Overall reaction: 2Cr3+ + 7H2O Cr207 2- + 3H2 + 8H* The characteristics of the electrolytic cell are as follows. (i) The distance between the cathode and separator, and the anode and the separator is 4 mm, and the conductivity of the electrolyte is 422 m-'. (ii) The resistance of the separator is 3.0 x 10-4 s2 mºct. (iii) The overvoltage of the cathode and anode is 340 mV and 210 mV, respectively, at a current density of 1500 Am-2. Chapter 11 Electrochemical Industry