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, J, QIAN, J, GAO, M, SHEN, S, & SUN, H (2004). Kinetics and Mechanism of Oxidation of n--Propanolamine by Dihydroxydiperiodatonickelate(IV) in Alkaline Medium. Turkish Journal of Chemistry 28 (1): 9-16. https://doi.org/-
