SEPARATION OF ZINC AND CADMIUM BY DITHIZONE AND TRILON

Journal Article · Thu Jan 01 04:00:00 EST 1959 · Dopovidi Akad. Nauk Ukr. R.S.R.

OSTI ID:4182914

Babko, A K; Klibus, A Kh

Besides the electronic structure of the central ion of the complex, a cause of retardation of the complex formation reaction may be the structural properties of the addend. Such a phenomenon is noted in the interaction of metals with (ethylenediamine)tetraacetic acid (EDTA). The calculation of the equilibrium constant of zinc dithizonates and cadmium with EDTA showed that the equilibrium of the reaction may be shifted, in the presence of a definite excess of EDTA, in the direction of dithizonate decay more readily for cadmium than for zinc. It was ascertained experimentally that the rates of the processes of forming complexes of cadmium and zinc with EDTA differ greatly and may become the criteron for a method of separating Cd ard Zn. The conditions for separation of Cd and Zn were investigated. The authors studied the effect of the pH, temperature, and trilon B concentration on the reaction rate of the interaction of zinc and cadmium dithizonates with trilon B. A method was developed on the basis of these experiments for the separation of small and approximately equal quantities of zinc and cadmium. (auth)

• Research Organization: Inst. of General and Inorganic Chemistry, Academy of Sciences, Ukrainian SSR
• NSA Number: NSA-14-006345
• OSTI ID: 4182914
• Journal Information: Dopovidi Akad. Nauk Ukr. R.S.R., Journal Name: Dopovidi Akad. Nauk Ukr. R.S.R. Vol. Vol: No. 9
• Country of Publication: Country unknown/Code not available
• Language: Ukrainian

Related Subjects

ACIDITY
CADMIUM
CHEMISTRY
COMPLEXES
DITHIZONE
EDTA
INTERACTIONS
ORGANIC COMPOUNDS
SEPARATION PROCESSES
ZINC