Process for obtaining a gold alloy deposit of 18 carat 3N

摘要

The electroplating process for the deposition of a yellow gold alloy on an electrode immersed in a bath comprising a gold metal (1-10 g/l), an organometallic compound, a wetting agent, a chelating agent and a free cyanide, is claimed. The metal alloy includes copper (78.31 wt.%), and silver (0.16 wt.%), and a content of gold is 21.53 wt.%. A concentration of the wetting agent is 0.05-10 ml/l. A temperature of the bath is maintained at 50-90[deg] C, and a pH of the bath is 8-12. The process is carried out at a current density of 0.05-1.5 A.dm - 2. An independent claim is included for an electroplating device.