Abstract
The acid-catalyzed oxidation of kappa-carrageenan (KCAR) polysaccharide as a natural polymer by chromic acid in aqueous perchloric acid at a constant ionic strength of 4.0 mol dm −3 have been investigated spectrophotometrically. A first-order reaction in chromic acid and a fractional-order with respect to KCAR concentrations were revealed. A kinetic evidence for the formation of 1:2 complex between chromic acid and KCAR is presented. The influence of hydrogen ion concentrations on the reaction rates showed that the oxidation process is acid-catalyzed. The kinetic parameters have been evaluated and a tentative reaction mechanism consistent with the kinetic results is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
