Eur. J. Chem. volume 3, issue 2, P156-162 2012 DOI: 10.5155/eurjchem.3.2.156-162.542 View Full Text
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Ismail Ibrahim Abbas, Hassan Hasan Hammud, Hasan Shamsaldeen

Abstract: KEYWORDSSolid-phase extraction of fluoride anions by calixpyrrole macrocycle (CP) from aqueous media has been studied using the batch method. Various significant extraction parameters like initial concentration of the anion, extraction time, concentration of the calixpyrrole, pH and temperature were evaluated. Langmuir, Freundlichand, Dubinin-Redushkevish (D-R) isotherms and coefficients were used to analyze the equilibrium data. The amount of fluoride anion extracted per unit of the CP was found to be 0.40 m…

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