A SELECTIVE KINETIC METHOD FOR THE ESTIMATION OF BENZYL ALCOHOL IN CLOSELY RELATED MIXTURES

Abstract

Abstract Ethylenebis(biguanide)silver(III) ion quantitatively oxidises benzyl alcohol and its derivatives (XC6H4CH2OH; X = H, CH3, Cl or NO2, substituents in ortho or para position). The difference in reaction rates for different alcohols has been utilised in developing a kinetic method for the estimation of benzyl alcohol (2.0–40.0 mmol dm−3) in the presence of a large number of closely related alcohols and hydroxy compounds. The relative standard deviation for ten replicate measurements of 5 mmol dm−3 benzyl alcohol is 1.5%. The method was satisfactorily applied to analyse real samples. Keywords: Kinetic methodKineticsBenzyl alcoholEstimation ACKNOWLEDGMENTS S. M. gratefully acknowledges University Grants Commission, New Delhi for financial support in terms of a minor research project. The authors thank Professors Somenath Ghosh and Sabooj Kumar Bhowal for many helpful discussions.