04686017 is referenced by 42 patents and cites 25 patents.

An electrolytic bath, suitable for depositing a metal on or removing a metal from a substrate is provided which comprises an anode and cathode, an acid having a pK.sub.a of about 6 or less, and a chalcogen-containing compound soluble in said bath and having the empirical formula ##STR1## wherein X is a chalcogen, each of R.sub.1 and R.sub.2 is selected from hydrogen, NR.sub.3 R.sub.4 and NR.sub.5, at least one of R.sub.1 and R.sub.2 is other than hydrogen, each of R.sub.3 and R.sub.4 is hydrogen or a monovalent organic radical, and R.sub.5 is a divalent organic radical, in which the molar ratio of the chalcogen compound to the acid is about 1 or more, and the molar ratio of water to the combination of acid and chalcogen compound is about 10 or less. The electrolytic bath enables the use of higher concentrations of strong acids than would otherwise be possible, minimize hydrogen and/or oxygen evolution at the electrodes with attendant advantages, and is useful in a variety of methods such as electroplating (including immersion plating), electroforming, electrolytic machining, electropolishing, electrolytic roughening, anodizing and electrowinning.

Electrolytic bath and methods of use
Application Number
Publication Number
Application Date
June 28, 1985
Publication Date
August 11, 1987
Donald C Young
Dean A Sandford
Gregory F Wirzbicki
Michael H Laird
Union Oil Co of California
C25D 3/00
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