Acidic plating bath and additives for electrodeposition of brigh

Chemistry: electrical and wave energy – Processes and products

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204DIG2, 260600R, C25D 332

Patent

active

039779491

ABSTRACT:
An aqueous acid tin electroplating bath contains as a brightening agent an alkoxy naphthalene carboxaldehyde, certain emulsifying agents and certain synergistically acting carboxylic acids, amides, and esters to give extremely bright electrodeposits.

REFERENCES:
patent: 3755096 (1973-08-01), Passal
patent: 3808277 (1974-04-01), Alvarez
patent: 3875029 (1975-04-01), Rosenberg et al.

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