Quantitative determination of major cadmium and zinc content of basic zinc@ alloys comprises separating cadmium and zinc by selective elution on ion exchange resin, breaking up sample, adjusting acidity, retaining cadmium and zinc, etc.

Debiasi, RodicaRodicaDebiasi2017-04-242017-04-241997-06-30Patent no. RO 112195-B1http://hdl.handle.net/123456789/943Patent Assignee Name(s) and Code(s): INST CERC EPURAREA APELOR REZIDUALECadmium and zinc are quantitatively separated by selective elution on ion exchange resin, and the sample is broken up in hot solution containing 1 :1 hydrochloric acid (HCl), to complete dissolution. The acidity is adjusted with HCl (3.5 M) and cadmium and zinc are retained on a quaternary ammonium salt-type anionite. Selective elution of zinc and cadmium is carried out, with various molarity HCl solutions and each metal is titrated at controlled pH with sodium-EDTA in the presence of black eriochromium T.en-USCadmiumZincQuantitative determinationQuantitative determination of major cadmium and zinc content of basic zinc@ alloys comprises separating cadmium and zinc by selective elution on ion exchange resin, breaking up sample, adjusting acidity, retaining cadmium and zinc, etc.Procedeu de dozare cantitativa a continuturilor majore de cadmiu si zinc din aliaje pe baza de zincPatent