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Adsorption and structure of MCl2 (M = Co2+, Cu2+, Zn2+, Cd2+, and Hg2+) complex species on a chemically modified silica gel surface with 1,4-diazabicyclo(2.2.2)octane

✍ Scribed by Wania C MoreiraYoshitaka Gushikem; Otaciro R Nascimento


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
382 KB
Volume
150
Category
Article
ISSN
0021-9797

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The isotherms of adsorption of CuX2 (X = Cl-, Br-, ClO-4) by silica gel chemically modified with 5-amino-1,3,4-thiadiazole-2-thiol were studied in acetone and ethanol solutions, at 25 degreesC. The following equilibria constants (in L mol-1) were determined: (a) CuCl2, 3.2 x 10(3) (ac), 2.5 x 10(3)