Sulfate Free Radicals –A Kinetic approach for Oxidation of L-Ascorbic Acid in Aqueous Acid Medium

Autor: Sailani, Riya, Soni, Narendra Kumar, Meena, Anita, Gupta, Vinita Kumari, Khandelwal, Chandra Lata, Sharma, Prem Dutt
Jazyk: angličtina
Rok vydání: 2014
DOI: 10.17628/ecb.2014.3.873-877
Popis: The kinetics of oxidation of l-ascorbic acid in absence and presence of silver (I) as catalyst has been studied in aqueous acid medium. The stoichiometry corresponds to the reaction as represented by eqn(1). S2O82- + C6H8O6 -> 2SO42- + C6H6O6 + 2H+ (1) The order with respect to ascorbic acid is unity in uncatalyzed reaction where as it is zero order in silver (I) catalyzed reaction. The reaction mechanism has been suggested in both the conditions delineating the role of sulfate radical ion.
European Chemical Bulletin, Vol 3, No 9 (2014): European Chemical Bulletin
Databáze: OpenAIRE