| abstract |
A chromium electrodeposition solution, comprising: a. a water-soluble trivalent chromium salt; b. more than one complexing agent for trivalent chromium ions, where complexing agents are selected from malic acid, aspartic acid, maleic acid, succinic acid, glycine and soluble salts of any of the foregoing, and where the forming agents of complexes are present in the range of 5 to 40 grams per liter; C. an additional pH buffer compound; and d. an organic compound containing sulfur, where the organic compound containing sulfur comprises divalent sulfur; where the pH of the solution is 2.8-4.2. |