Solvent extraction of copper(II) with chlorendic acid.
The solvent extraction of Cu(II) with chlorendic acid has been studied The composition of the extracted species appears to be a function of pH. In the pH range 3.2-4.6, a monomeric species exists [Cu(II)(L(2-)], while at pH values greater than 4.5, a dimer in the form of [Cu(II)(L(2-)). H(2)L](2) and/or [Cu(II)(HL(-))(2)](2) is extracted.
Berger
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Department of Sciences, John Jay College of Criminal Justice, City University of New York, 445 West 59 St., New York, New York 10019, U.S.A.