Acid-catalyzed oxidation of some sulfated polysaccharides: Kinetics and mechanism of oxidation of kappa-carrageenan by cerium(IV) in aqueous perchlorate solutions
β Scribed by R.M. Hassan; A. Alaraifi; A. Fawzy; I.A. Zaafarany; K.S. Khairou; Y. Ikeda; H.D. Takagi
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 337 KB
- Volume
- 332
- Category
- Article
- ISSN
- 1381-1169
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Silver(1) catalyzed oxidation of aspartic acid by cerium(1V) was studied in acid perchlorate medium. The stoichiometry of the reaction is represented by the eq. (i) Dimeric cerium(IV) species has been indicated and employed in calculations of monomeric cerium(IV) species concentrations. The reactio
The kinetics of oxidation of ethanol by cerium(1V) in presence of ruthenium(II1) (in the order of mol dm-3) in aqueous sulfuric acid media have been followed at different temperatures (25-40Β°C). The rate of disappearance of cerium(1V) in the title reaction increases sharply with increasing [CzH50H]
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
## Abstract The Ce(IV) oxidation of the fiveβ, sixβ, and sevenβmembered ring Ξ±βhydroxycycloalkanecarboxylic (C5, C6, and C7) acids to the corresponding cyclic ketones has been studied in acidic perchlorate media. The data may be interpreted in terms of a mechanism which involves fast preequilibrium