Modem Electroplating

In a mixed copper-zinc solution of complex cyanide, however, the Cu ion concentration can be reduced to the order of lO mol/L and the concentration ratio (zinc ion)/(copper ion) will be made very large. A detailed calculation for this case is given by Faust in the 1974 edition of Modem Electroplating (1). It is shown there, and in detail below, that the copper cyanide complex is Cu(CN)3 , for which the dissociation value is known. The dissociation constant for the zinc cyanide complex, Zn(CN)4 , is also well known. Using those values that determine the fraction concentration of the free metal ion in solution and assuming an initial specific molar concentration, it is shown below that their respective reversible electrode potentials [see also Eq. (11.1)] can be brought together. 

F. A. Lowenheim, Modem Electroplating, John Wiley Sons, New York, 1974, pp. 352—354. 

M. Schlesinger, M. Paunovic, (eds) Modem electroplating, 4th edn, Wiley- Interscience, New York, 2000. 

M. Schlesinger and M. Paunovi, Modem Electroplating, Wiley, New York, 2000. 

Schlesinger M, Paunovic M (eds) (2010) Modem electroplating, 5th edn. Wiley, New York... 

Modem Electroplating, Third Edition Edited by Frederick A. Lowenheim... 

Hodes G (1995) In Rubinstein I (ed) Physical electrochemistry. Electrodeposition of II-VI semiconductors. Marcel Dekker, New York, p 515 Schlesinger M (2000) In Schlesinger M, Paunovic M (eds) Modem electroplating. Electrodeposition of semiconductors, Wiley, New York, p 585 Murali KR, Matheline M, John R (2009) Characteristics of brush electrodeposited CdS films. Chalcogenide Lett 6 483... 

H. Lofthouse, The World of Chromium Metal in the report of the ICDA South Africa Conference 2003, Paris 2003 G. Dubpemell, Chromium in Modem Electroplating, (ed. F.A. Lowenheim). 3 edn, John Wiley Sons, New York, 1974, p. 98... 

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