Kinetics of oxidation of trimethylamine by hexacyanoferrate(III) in aqueous medium

1983 ◽  
Vol 23 (3-4) ◽  
pp. 393-395 ◽  
Author(s):  
Gopa Dasgupta ◽  
M. K. Mahanti
Keyword(s):  
Aqueous Medium ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

Cinétique d'oxydation des oximes du benzaldéhyde et de l'acétophénone par l'ion thallique

1980 ◽  
Vol 58 (13) ◽  
pp. 1305-1310 ◽  
Author(s):  
Robert Lortie ◽  
Miklos Zador
Keyword(s):  
Reaction Mechanism ◽  
Aqueous Medium ◽  
Rate Equation ◽  
Chloride Ions ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

The kinetics of oxidation of benzaldehyde and acetophenone oximes by Tl(III) in aqueous medium has been studied. The reaction occurs in two consecutive steps: formation of a nitroso intermediate and its decomposition. The oxime forms a complex with Tl(III) leading to the rate equation: −d[oxime]/dt = K1/k2[oxime][Tl(III)]/(1 + K1[Tl(III)]). The formation of the final carbonyl product is inhibited by Tl(III), a resuit of the formation of a complex resistant to decomposition. Coordination of Tl(III) by chloride ions affects the rate of the above two steps. The reaction mechanism is discussed. [Journal translation]

scholarly journals Kinetics of Oxidation of Hexakis (P-chloroaniline) Cobalt (II) Chloride by Potassium Iodate

2003 ◽  
Vol 2 (1) ◽  
pp. 34-38
Author(s):  
B. Edison ◽  
S. Peter
Keyword(s):  
Kinetic Parameters ◽  
Aqueous Medium ◽  
Neutral Salt ◽  
Complex Solution ◽  
Potassium Iodate ◽  
Kinetics Of Oxidation ◽  
First Order ◽  
First Order Kinetics ◽  
Kinetics Of

Vit B12 is an important complex of cobalt3 . The rate of oxidation of the Synthesized complex Hexakis(p-chloral aniline) cobalt((II) chloride follows first order kinetics with respect to the complex and oxidant potassium iodate1,2,4-8 in aqueous medium. Increasing in the concentration of complex solution increases the rate of the oxidation. The rate of the reaction is studied by changing the acid concentrations of the medium , by changing the temperature and by introducing the neutral salt (NaCl) in the Medium. From this study the kinetic parameters Ea, A,∆S#,∆G#,∆H# are found out. From the observed fats it is inferred that the reaction follows three steps.

Kinetics of oxidation of an arabinogalactan from larch (Larix sibirica L.) in an aqueous medium in the presence of hydrogen peroxide

2004 ◽  
Vol 53 (2) ◽  
pp. 318-324 ◽  
Author(s):  
I. M. Borisov ◽  
E. N. Shirokova ◽  
R. Kh. Mudarisova ◽  
R. R. Muslukhov ◽  
Yu. S. Zimin ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Medium ◽  
Larix Sibirica ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

The effect of the reactions at the scale-gas and scale-metal. Interfaces on the kinetics of oxidation of pure metals

1995 ◽  
Vol 92 (12) ◽  
pp. 1315-1330 ◽  
Author(s):  
F. Gesmundo ◽  
J. Philibert ◽  
Y. Niu
Keyword(s):  
Kinetics Of Oxidation ◽  
Pure Metals ◽  
Metal Interfaces ◽  
Kinetics Of

Biomimic Oxidation Kinetics of Folic Acid by Amine μ-peroxo Complex in Aqueous medium

2017 ◽  
Vol 7 (12) ◽  
pp. 1196-1201
Author(s):  
S. Ignatius Arockiam
Keyword(s):  
Folic Acid ◽  
Aqueous Medium ◽  
Oxidation Kinetics ◽  
Peroxo Complex ◽  
Kinetics Of

Spectrocoulometry – a new spectro-electrochemical technique

1987 ◽  
Vol 52 (6) ◽  
pp. 1386-1396 ◽  
Author(s):  
Ján Mocák ◽  
Michal Németh ◽  
Mieczyslaw Lapkowski ◽  
Jerzy W. Strojek
Keyword(s):  
Optical Probe ◽  
Optical Signal ◽  
Open Circuit ◽  
Electrochemical Technique ◽  
Kinetics Of Oxidation ◽  
Hydrolytic Reaction ◽  
Experimental Errors ◽  
Mechanism And Kinetics ◽  
Kinetics Of

A spectrocoulometric macrocell with a direct-view optical probe was designed and constructed, where the optical signal is transferred by light-conducting glass or quartz fibres permitting to work at wavelengths above 410 or 300 nm. The method of measurement on the proposed equipment is described; it was tested in the study of the mechanism and kinetics of oxidation of Fe(bipy)32+ ions (bipy = 2,2'-bipyridyl) with the use of potentiostatic coulometric electrolysis with open-circuit relaxation at a suitable time. The primary product of electrolysis, Fe(bipy)33+, undergoes a follow-up hydrolytic reaction with the formation of a binuclear complex. The rate constant of the reaction of the first order involves the contributions, kBi, from all bases present in solution; the corresponding values for H2O, OH-, bipy, and CH3COO- ions at a ionic strength 0·5 mol dm-3 and 25 °C were determined as kOH = (5·0 ± 0·6) . 105 mol-1 dm3 s-1, kbipy = (1·3 ± 0·2) . 10-1 mol-1 dm3 s-1, kAc = (5·8 ± 1·0) . 10-2 mol-1 dm3 s-1, and kH2O is not significant with respect to experimental errors.

Effects of salts on the kinetics of oxidation of alkenes by thallic salts in aqueous solutions

1981 ◽  
Vol 46 (3) ◽  
pp. 693-700 ◽  
Author(s):  
Milan Strašák ◽  
Jaroslav Majer
Keyword(s):  
Aqueous Solutions ◽  
Phase Transfer ◽  
Heterogeneous Reaction ◽  
Qualitative Model ◽  
Kinetic Effect ◽  
Tetraalkylammonium Salts ◽  
Reaction Conditions ◽  
Kinetics Of Oxidation ◽  
Kinetics Of ◽  
Heterogeneous Reaction Conditions

The kinetics of oxidation of alkenes by thallic sulphate in aqueous solutions, involving the two reaction steps-the hydroxythallation and the dethallation - was studied, and the effect of salts on the kinetics was examined; this made it possible to specify more precisely the reaction mechanism and to suggest a qualitative model of the reaction coordinate. It was found that in homogeneous as well as in heterogeneous reaction conditions, the reaction can be accelerated appreciably by adding tetraalkylammonium salts. These salts not only operate as catalysts of the phase transfer, but also exert a significant kinetic effect, which can be explained with a simplification in terms of a stabilization of the transition state of the reaction.

Kinetics of oxidation of ammonia on cobalt catalyst I model of the reactor with catalytically active wall

1982 ◽  
Vol 47 (8) ◽  
pp. 2087-2096 ◽  
Author(s):  
Bohumil Bernauer ◽  
Antonín Šimeček ◽  
Jan Vosolsobě
Keyword(s):  
Parabolic Equations ◽  
Cobalt Catalyst ◽  
Nonlinear Parabolic Equations ◽  
Catalytic Reactions ◽  
Temperature Profiles ◽  
Dimensional Model ◽  
Kinetics Of Oxidation ◽  
Nonlinear Parabolic ◽  
Catalytically Active ◽  
Kinetics Of

A two dimensional model of a tabular reactor with the catalytically active wall has been proposed in which several exothermic catalytic reactions take place. The derived dimensionless equations enable evaluation of concentration and temperature profiles on the surface of the active component. The resulting nonlinear parabolic equations have been solved by the method of orthogonal collocations.

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