标题：Acid catalyzed Oxidation: Kinetics of Oxidation of Methyl Cellulose Polysaccharide as A Natural Polymer by Chromic Acid in Aqueous Perchlorate Solutions with Novel Synthesis of Coordination Biopolymer Precursors
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：8
页码：6948
DOI：10.15680/IJIRSET.2015.0408185
出版社：S&S Publications
摘要：The kinetics of chromic acid oxidation of methyl cellulose (MC) in aqueous acidic solutions has beeninvestigated at constant ionic strength of 4.0 mol dm-3, spectrophotometrically. The experimental results showed firstorderdependence in chromic acid and fractional first-order kinetics with respect to [MC]. A kinetic evidence forformation of 1:1 intermediate complex was revealed. The hydrogen ion dependence of reaction rates indicated that theoxidation process is acid-catalyzed. The activation parameters have been evaluated and a tentative reaction mechanismconsistent with the kinetic results is suggested. The oxidation product of the substrate has been separated ascoordination biopolymer chelating agent precursor and was identified by elemental analysis and IR spectra. Itstendency for the oxidation product for chelating the polyvalent metal cations has been examined
