Turkish Journal of Chemistry
Abstract
The kinetics of oxidation of n--Propanolamine (n-PA) by dihydroxy diperiodato-nickelate(IV) (DPN) in alkaline medium was studied with spectrophotometry in a temperature range of 293.2-308.2 K. The reaction was found to be pseudo first-order with respect to DPN and fractional order to n-PA. The rate conatant k_{obs}, rose with an increase in the concentration of OH^{-} and a decrease in the concentration of IO_{4}^{-}. Added salts did not affect the rate and no free radical was detected. From the evaluation of linear data, a reaction mechanism is proposed which involves a pre-equilibrium of an adduct formation between n-PA and dihydroxymonoperiodatonickelate(IV) (MPN), and the activation parameters of the rate-determining step have been calculated.
DOI
-
Keywords
Dihydroxydiperiodatonickelate(IV), n--Propanolamine, Redox reaction, Kinetics and mechanism
First Page
9
Last Page
16
Recommended Citation
SHAN, JIN-HUAN; QIAN, JING; GAO, MING-ZHU; SHEN, SHI-GANG; and SUN, HAN-WEN (2004) "Kinetics and Mechanism of Oxidation of n--Propanolamine by Dihydroxydiperiodatonickelate(IV) in Alkaline Medium," Turkish Journal of Chemistry: Vol. 28: No. 1, Article 2. Available at: https://journals.tubitak.gov.tr/chem/vol28/iss1/2
