Method of and electrolytic bath for the electrodeposition of sem

Chemistry: electrical and wave energy – Processes and products

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204 49, C25D 312, C25D 316, C25D 318, C25D 356

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active

040100847

ABSTRACT:
Semibright (matte-gloss) coatings of nickel or nickel-cobalt are deposited on a metal substrate from a WATT'S-type sulfamiate or fluorobate electroplating bath at a pH of 2.5 to 5.8, a temperature of 15.degree. to 70.degree. C and a current density of 0.5 to 20 A/dm.sup.2 in the presence of a substance which deposits with the metal and ensures a semibright or matte-gloss finish. The substances form in situ within the bath from a cationic or amphoteric first component and a second component consisting of an organic anion interactive with the first component to produce a flocculate.

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