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| THE RELATIONSHP BETWEEN THE NUMERICAL VALUES OF THE·THROWING POWER AND GEOMETRIC DIMENSIONS OF HARING CELL |
| Wu Beiming Zhang Zhibing and Yu Zuzhan (Chemistry Department; Fudan University) |
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Abstract The relationship between the numerical vaiues of the throwing power (T.P.) and the absolute geometric dimensions of Haring Cell was studied by theoretical analysis and experimental examination.Assuming that the current efficiency is equal to 100% on the two cathods, the relationship between the numerical values of T. P. and geometric dimensions of Haring Cell can be expressed in the following manner.T.P.=(For Haring-Blum's definition)T.P.=(For Heatley-Pan'sT.P.=(For Field's definition)T.P.=(For Luke's definition)These expressions show that the numerical values of T.P.depend on the ratio L_n/Lf and the distance of the nearer (or further) cathod to the common anode in the case of Haring-Blum's definition or Luke's definition and only depend on L_n in the case of Heatley-Pan's or Field's definitions.These conclusions were confirmed by experimental results o btained in the case of electroplating of silver from picolinic acid and cyanide systems.
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Received: 25 June 1986
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Cite this article:
Wu Beiming Zhang Zhibing and Yu Zuzhan (Chemistry Department; Fudan University). THE RELATIONSHP BETWEEN THE NUMERICAL VALUES OF THE·THROWING POWER AND GEOMETRIC DIMENSIONS OF HARING CELL. J Chin Soc Corr Pro, 1986, 6(3): 61-68.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1986/V6/I3/61
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[1] Lowenheim, F.A., Modern Electroplaing, 3rd Ed., Awiley Interscienee Publication, 30(1974)
[2] Ibl, N., in "Comprehensive Treatise of Electrochemistry" Plenum Press, New York, 6, 259(1983)
[3] Pan, L.C., Trans. Electrocthem.Soc.58, 423(1930)
[4] Chin, D.T, J.Electrochem.Soc., 118, 819(1971)
[5] Luke, D.A., Trans.Institute of Metal Finishing (1) , 64(1983)
[6] CCCP. 398(1960)
[7] 《电极过程动力学》朱荣昭译,科学出版社,260(1975) |
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