Kinetics and Mechanism of the Oxidation of Pentathionate Ion by Chlorine Dioxide in a Slightly Acidic Medium

2014 ◽  
Vol 118 (8) ◽  
pp. 1293-1299 ◽  
Author(s):  
Li Xu ◽  
György Csekő ◽  
Andrea Petz ◽  
Attila K. Horváth
Keyword(s):  
Chlorine Dioxide ◽  
Acidic Medium ◽  
Kinetics And Mechanism

scholarly journals Kinetics and mechanism of cetyltrimethylammonium bromide catalyzed oxidation of diethylene glycol by chloramine-T in acidic medium

2003 ◽  
Vol 68 (7) ◽  
pp. 535-542 ◽  
Author(s):  
V.W. Bhagwat ◽  
J. Tiwari ◽  
A. Choube ◽  
B. Pare
Keyword(s):  
Diethylene Glycol ◽  
Acidic Medium ◽  
Cetyltrimethylammonium Bromide ◽  
Reaction Rate ◽  
Chloride Ions ◽  
Kinetics And Mechanism ◽  
Product Analysis ◽  
Rate Determining Step ◽  
Chloramine T ◽  
Catalyzed Oxidation

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.

Kinetics and mechanism of benzoin oxidation using iron(III) in the presence of ferrozine or 2,2'-bipyridine in acidic medium

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
Keyword(s):  
Acidic Medium ◽  
Kinetics And Mechanism

ChemInform Abstract: Kinetics and Mechanism of the Oxidation of Thiourea by Chlorine Dioxide.

ChemInform ◽  
2010 ◽  
Vol 24 (15) ◽  
pp. no-no
Author(s):  
G. RABAI ◽  
R. T. WANG ◽  
K. KUSTIN
Keyword(s):  
Chlorine Dioxide ◽  
Kinetics And Mechanism

scholarly journals Inactivation Kinetics and Mechanism of a Human Norovirus Surrogate on Stainless Steel Coupons via Chlorine Dioxide Gas

2015 ◽  
Vol 82 (1) ◽  
pp. 116-123 ◽  
Author(s):  
Jia Wei Yeap ◽  
Simran Kaur ◽  
Fangfei Lou ◽  
Erin DiCaprio ◽  
Mark Morgan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Chlorine Dioxide ◽  
Plaque Assay ◽  
Kinetics And Mechanism ◽  
Inactivation Kinetics ◽  
Human Norovirus ◽  
Effective Measure ◽  
Food Contact ◽  
Food Contact Surfaces ◽  
Contact Surfaces

ABSTRACTAcute gastroenteritis caused by human norovirus is a significant public health issue. Fresh produce and seafood are examples of high-risk foods associated with norovirus outbreaks. Food contact surfaces also have the potential to harbor noroviruses if exposed to fecal contamination, aerosolized vomitus, or infected food handlers. Currently, there is no effective measure to decontaminate norovirus on food contact surfaces. Chlorine dioxide (ClO2) gas is a strong oxidizer and is used as a decontaminating agent in food processing plants. The objective of this study was to determine the kinetics and mechanism of ClO2gas inactivation of a norovirus surrogate, murine norovirus 1 (MNV-1), on stainless steel (SS) coupons. MNV-1 was inoculated on SS coupons at the concentration of 107PFU/coupon. The samples were treated with ClO2gas at 1, 1.5, 2, 2.5, and 4 mg/liter for up to 5 min at 25°C and a relative humidity of 85%, and virus survival was determined by plaque assay. Treatment of the SS coupons with ClO2gas at 2 mg/liter for 5 min and 2.5 mg/liter for 2 min resulted in at least a 3-log reduction in MNV-1, while no infectious virus was recovered at a concentration of 4 mg/liter even within 1 min of treatment. Furthermore, it was found that the mechanism of ClO2gas inactivation included degradation of viral protein, disruption of viral structure, and degradation of viral genomic RNA. In conclusion, treatment with ClO2gas can serve as an effective method to inactivate a human norovirus surrogate on SS contact surfaces.

Kinetics and mechanism of the dehydration reaction of sarcosine to a bislactame through diacyclperoxide intermediate in strong acidic medium

2009 ◽  
Vol 41 (11) ◽  
pp. 689-703 ◽  
Author(s):  
Homayoon Bahrami ◽  
Mehdi D. Davari ◽  
Maryam Keshavari ◽  
Mansour Zahedi ◽  
Ayoob Bazgir ◽  
...  
Keyword(s):  
Acidic Medium ◽  
Kinetics And Mechanism ◽  
Dehydration Reaction
Sign in / Sign up

Export Citation Format

Share Document