Polarographic and photometric determination of copper, lead, cadmium, zinc and nickel in palladium
Analysis of impurities in pallaidum. II
1966 Volume 15 Issue 4 Pages 321-328
Details
1966 Volume 15 Issue 4 Pages 321-328
Palladium was removed by extraction with cyclohexanone from hydrobromic (0.30.4 N)-sulfuric (56 N) acid solution. After the organic phase was washed with sulfuric acid (1 : 50), all the aqueous phases were combined and evaporated to dryness. The residue was dissolved in hydrochloric acid after the organic matter was decomposed by a wet method. Photometric determination of copper was done on the copperneocuproine complex extracted into chloroform. The aqueous phase was used for the determination of nickel with dimethylglyoxime.
Lead, cadmium and zinc were extracted with dithizone-chloroform and determined by the squarewave polarography.
Copper was alternatively determined by the squarewave polarography.
