Extraction of Dithiocarbamate Chelates of Ni(II), Cu(II), Zn(II)

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Title:Extraction of Dithiocarbamate Chelates of Ni(II), Cu(II), Zn(II)
Creators:
Oktavec, Drahomír
Lehotay, Jozef
Vrábel, Viktor
Korgová, Elena
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 61, 5, pp. 673-680
Uncontrolled Keywords:Spectrophotometry, Extraction, Dithiocarbamate, spectrophotometric determination

Abstract

Extraction has been investigated of chelates of alkali salts of dithiocarbamic (DTC) acids derived from (R-) dimethyl-, diethyl-, dipropyl-, diisopropyl-, dibutyl-, diisobutyl-, dipentyl-, and dihexylamine, piperidine, and morpholine with Ni(II), Cu(II), and Zn(II) from aqueous solutions of various pH values into chloroform for various time intervals. The optimum conditions have been determined for the maximum extraction yields of the metal connected with the minimum extraction yields of excess DTC ligand. The extraction of DTC chelates of Ni(II), Cu(II), and Zn(II) is best accomplished in a reaction period of 4.5 min in strong acid region (Ni, Cu) or in alkaline region with buffers of pH 8.5-9.0 (Zn). The advantage of DTC as compared with many other reagents lies in the possibility of quantitative extraction of Ni(II) and Cu(II) from strong acid media since in this region the excess DTC ligand is completely decomposed to carbon disulfide and amine in short time, and thus it does not interfere with the subsequent spectrophotometric determination.

Title:Extraction of Dithiocarbamate Chelates of Ni(II), Cu(II), Zn(II)
Creators:
Oktavec, Drahomír
Lehotay, Jozef
Vrábel, Viktor
Korgová, Elena
Uncontrolled Keywords:Spectrophotometry, Extraction, Dithiocarbamate, spectrophotometric determination
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:61
Number:5
Page Range:pp. 673-680
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19960673UNSPECIFIED
ID Code:967
Item Type:Article
Deposited On:06 Feb 2009 17:05
Last Modified:06 Feb 2009 16:05

Citation

Oktavec, Drahomír; Lehotay, Jozef; Vrábel, Viktor; Korgová, Elena (1996) Extraction of Dithiocarbamate Chelates of Ni(II), Cu(II), Zn(II). Collection of Czechoslovak Chemical Communications, 61 (5). pp. 673-680. ISSN 0010-0765

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