An equilibrium study of mercury dithizonate distribution in carbon tetrachloridenatural water system. | [Journal of Chemical Society of Pakistan • 1987]

Author(s):

1. M. Jaffar: Chemistry Department, Quaid-i-Azam University (QAU), Islamabad, Pakistan

2. M. Ashraf: Chemistry Department, Quaid-i-Azam University (QAU), Islamabad, Pakistan

3. M. Takiq: Chemistry Department, Quaid-i-Azam University (QAU), Islamabad, Pakistan

Abstract:

Based on high solubility of mercury dithizonate in carbon tetrachloride, a method is developed for the removal of mercury from natural waters. Quantitative study of the factors responsible for the establishment of equilibrium for the mercury dithizonate-carbon tetrachloride-natural water system is undertaken. The variables of the system studied include pH of the medium, equilibration time and the amount of the complexing reagent. Flameless atomic absorption and colorimetric methods under optimum conditions are applied for the estimation of mercury in the aqueous phase and the organic phase. The method is found to yield above 94% extraction of mercury in a single extraction step at 20°C. The method has the potential of application to industrial effluents for mercury removal.

Page(s): 259-64

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 9, Issue: 2, Year: 1987

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