Kinetics and Mechanism of the Oxidation of Thiourea Dioxide by Iodine in a Slightly Acidic Medium

2017 ◽  
Vol 56 (8) ◽  
pp. 4679-4687 ◽  
Author(s):  
Li Xu ◽  
László Valkai ◽  
Alena A. Kuznetsova ◽  
Sergei V. Makarov ◽  
Attila K. Horváth
2014 ◽  
Vol 118 (8) ◽  
pp. 1293-1299 ◽  
Author(s):  
Li Xu ◽  
György Csekő ◽  
Andrea Petz ◽  
Attila K. Horváth

2003 ◽  
Vol 68 (7) ◽  
pp. 535-542 ◽  
Author(s):  
V.W. Bhagwat ◽  
J. Tiwari ◽  
A. Choube ◽  
B. Pare

The kinetics and mechanism of the C16TABcatalyzed oxidation of diethylene glycol (2,2?-oxydiethanol) by chloramine-T in acidic medium has been studied. The reaction has a first-order dependence on chloramine-T. With excess concentrations of other reactants, the reaction rate follows fractional order kinetics with respect to [diethylene glycol]. The micellar effect due to cetyltrimethylammonium bromide, a cationic surfactant, has been studied. The reaction is catalyzed by chloride ions as well. The small salt effect and increase in the reaction rate with increasing dielectric constant suggest the involvement of neutral molecules in the rate determining step. Addition of p-toluenesulfonamide retards the reaction rate. On the basis of product analysis, a pertinent mechanism is proposed.


2005 ◽  
Vol 37 (7) ◽  
pp. 444-449 ◽  
Author(s):  
Khaldoun A. Al-Sou'od ◽  
Basem F. Ali ◽  
Rajab Abu-El-Halawa ◽  
Abd-Al-Hakeem H. Abu-Nawas

2009 ◽  
Vol 41 (11) ◽  
pp. 689-703 ◽  
Author(s):  
Homayoon Bahrami ◽  
Mehdi D. Davari ◽  
Maryam Keshavari ◽  
Mansour Zahedi ◽  
Ayoob Bazgir ◽  
...  

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