| abstract |
A rhodium-plated article with black or blue color is obtained through electroplating by using a plating bath comprising a conventional acid rhodium bath and an additive consisting of organocarboxylic acid, aromatic sulfonic acid or salts of these, amine, gelatine, butynediol, hypophosphite or a mixture thereof. The rhodium-plated article with the black color is subjected to anodic treatment for improving wear resistance. |