ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The substoichiometric extraction of Hg2+ using diethyldithiocarbamic acid and 203Hg tracer was studied. Chloroform was employed to remove the complexes from the aqueous media which were 0.5M H2SO4 or 1 M HClO4 and 0 to 5 M NaCL. - Systems containing Cl- allowed extraction of Hg2+ for all DDC/Hg molar ratios, the extracted complexes being HgCl(DDC) and Hg(DDC)2. Their exchange constant was determined. - In the absence of Cl-, no extraction could be effected in either system if the DDC/Hg molar ratio was 〈 1; the H2SO4 system remained clear, whereas a precipitate of HgClO4(DDC) formed in the HClO4 system. For molar ratios 〉 1, the extraction of Hg2+ increased linearly with the addition of DDC, the extracted complex being Hg(DDC)2.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19730560404
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