EXTRACTION AND SEPARATION OF MERCURY USING (SUBSTITUTED)-PYRIMIDO[1,6-A]BENZIMIDAZOLE-1-THIOL (PBT) AND ITS APPLICATION TO INDUSTRIAL EFFLUENTS

Authors
SAHU R SONDHI SM GUPTA B
Citation
R. Sahu et al., EXTRACTION AND SEPARATION OF MERCURY USING (SUBSTITUTED)-PYRIMIDO[1,6-A]BENZIMIDAZOLE-1-THIOL (PBT) AND ITS APPLICATION TO INDUSTRIAL EFFLUENTS, Journal of radioanalytical and nuclear chemistry, 200(6), 1995, pp. 509-520
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
200
Issue
6
Year of publication
1995
Pages
509 - 520
Database
ISI
SICI code
0236-5731(1995)200:6<509:EASOMU>2.0.ZU;2-T
Abstract
A selective method for the extraction of mercury(II) from hydrochloric acid solution with trahydro-3,3,4a-trimethyl-7-(substituted)-pyrimido [1,6-a]benzimidazole-1-thiol, (PET) is proposed. The extraction abili ty of the system was studied both in strongly acidic (6 mol dm(-3) HCl ) and alkaline (pH 12) media. The optimum extraction conditions were e valuated from a critical study of the effect of pH, PBT concentration and metal ion concentration. The probable composition of the species h as been deduced from lg-lg plots and an extraction mechanism is sugges ted. A separation scheme is proposed. The method has been applied for the determination of Hg(II) in industrial waste water.