The relationships of cathode reactions in trivalent chromium electrodeposition process were analyzed.

N-containing cationic surfactant 1631 was used as the hydrogen-evolution retarding agent so as to prevent the competitive precipitation of H+ with Cr 3+ ions during the electrodeposition of chromium and increase the electrodeposition efficiency of chromium.

A process for trivalent chromium electroplating in sulphate system was established.

At present, trivalent chromium electroplating process has became one of the mostimportant techniques to taking place of the seriously pollutional hexvalent chromiumelectroplating process.

Electrochemical behavior of oxide-coated Ti electrode for trivalent chromium plating;

In this paper, three types of bath for trivalent chromium plating are gained: chloride-glycine bath, chloride-U bath and sulfate-oxalic bath.

A new trivalent chromium plating process using formate-carboxylic acid salt as complexing agents is studied in this paper.

In a 2 x 6 factorial experiment , five hundred and fifty Roman laying hens , 57-week age , were randomly divided into 11 groups to study the effects of supplemental dietary of different chromium sources (chromium nicolinale and chromium yeast) and chromium level on egg production performance , egg quality , blood biochemical parameters of laying hens , and the deposit of chromium in eggs .