| 摘要 |
An improved process and composition for the preparation of nickel or nickel alloy electrodeposits is provided. The process involves passing current from a anode to a cathode through an aqueous acidic electroplating solution containing zinc ions as impurities with the combination of at least one nickel compound, saccharin, and a sulfonated acetylenic compound or salt thereof, particularly propyne sulfonic acid. The invention is particularly useful for electroplating nickel onto a zinc die cast substrate, where zinc ion impurity build-up in the bath occurs.
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