Kinetics and Mechanism Study of Oxidation of Ethylenediamine and Ethanolamine by Potassium Ferrate (VI) in Alkaline Media

In this work, the kinetics of oxidation of Ethylenediamine and Ethanolamine by Potassium Ferrate (VI) has been studied by using stop –flow spectrometer under alkaline media. The results show that the oxidation-reduction reaction is a first-order to reactant and a negative fraction order to [OH-]. A convincing mechanism involving a slow response as the rate-controlling step is proposed and the rate equations derived from the mechanism was shown to fit all the experimental observations. The rate constants of the rate-controlling step and the thermodynamic activation parameters were calculated.

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Kinetics and Mechanism of Oxidation of Diethanolamine and Triethanolamine by Potassium Ferrate

E-Journal of Chemistry ◽

10.1155/2011/267894 ◽

2011 ◽

Vol 8 (2) ◽

pp. 903-909 ◽

Cited By ~ 1

Author(s):

Shan Jinhuan ◽

Zhang Jiying

Keyword(s):

Activation Parameters ◽

Rate Equations ◽

Potassium Ferrate ◽

Kinetics Of Oxidation ◽

First Order ◽

Order Dependence ◽

Rate Determining Step ◽

Thermodynamic Activation Parameters ◽

Plausible Mechanism ◽

Kinetics Of

The kinetics of oxidation of diethanolamine and triethanolamine by potassium ferrate(VI)in alkaline liquids at a constant ionic strength has been studied spectrophotometrically in the temperature range of 278.2K-293.2K. The reaction shows first order dependence on potassium ferrate(VI), first order dependence on each reductant, The observed rate constant (kobs) decreases with the increase in [OH-], the reaction is negative fraction order with respect to [OH-]. A plausible mechanism is proposed and the rate equations derived from the mechanism can explain all the experimental results. The rate constants of the rate-determining step and the thermodynamic activation parameters are calculated.

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The kinetics of the oxidation-reduction reaction between uranium(VI) and titanium(III) in HCl solution

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/bf02035635 ◽

1995 ◽

Vol 190 (1) ◽

pp. 37-50 ◽

Cited By ~ 1

Author(s):

Muhammad Abdul Hamid ◽

Ejaz Ur Rehman ◽

Muhammad Fuzail ◽

Riffat Naheed ◽

Amin-Uddin Ahmed

Keyword(s):

Reduction Reaction ◽

Oxidation Reduction ◽

Oxidation Reduction Reaction ◽

Kinetics Of ◽

Hcl Solution

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The kinetics of photosynthesis

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1935.0083 ◽

1935 ◽

Vol 149 (868) ◽

pp. 596-596 ◽

Cited By ~ 2

Keyword(s):

Chlorophyll A ◽

Reduction Reaction ◽

Chlorophyll B ◽

Primary Reaction ◽

External Concentration ◽

Photostationary State ◽

Oxidation Reduction ◽

Oxidation Reduction Reaction ◽

Rate Of Photosynthesis ◽

Kinetics Of

It has been proved that the primary process in photosynthesis is an oxidation-reduction reaction. Expressing this in the simplest terms of chlorophyll, a complex of chlorophyll A and hydrated CO 2 is converted by the action of light into chlorophyll B and activated formaldehyde which at once undergoes polymerization into hexoses. The chlorophyll B thereby produced undergoes the dark or Blackman reaction and is reduced to chlorophyll A. There are, therefore, three separate processes involved in the photosynthetic cycle, namely, the primary photosynthetic reaction, the Blackman reaction, and the formation of the photosensitive complex of chlorophyll A and hydrated CO 2 . Since the Blackman reaction regenerates chlorophyll A from the chlorophyll B produced in the primary reaction, a photostationary state will be established which is determined by the intensity of irradiation, the temperature and the external concentration of hydrated CO 2 . In this communication the equation for the photostationary state is derived, and shown to express correctly the variation in the rate of photosynthesis with temperature.

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Kinetics and Mechanism of Oxidation of Isobutylamine and 1,4-Butanediamine by Potassium Ferrate

E-Journal of Chemistry ◽

10.1155/2011/383287 ◽

2011 ◽

Vol 8 (3) ◽

pp. 1371-1377

Author(s):

Shan Jinhuan ◽

Yang Yafeng

Keyword(s):

Activation Parameters ◽

Rate Equations ◽

Potassium Ferrate ◽

Kinetics Of Oxidation ◽

First Order ◽

Rate Determining Step ◽

Thermodynamic Activation Parameters ◽

Plausible Mechanism ◽

Mechanism Of Oxidation ◽

Kinetics Of

The kinetics of oxidation of isobutylamine and 1,4-butanediamine by home-made potassium ferrate(VI) at different conditions has been studied spectrophotometrically in the temperature range of 288.2 -303.2 K. The results show first order dependence on potassium ferrate(VI) and on each reductant. The observed rate constant (kobs) decreases with the increase of [OH-], the reaction was negative fraction order with respect to [OH-]. A plausible mechanism was proposed and the rate equations derived from the mechanism can explain all the experimental results. The rate constants of the rate-determining step and the thermodynamic activation parameters were calculated.

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Heterogeneous catalysis in solution. Part 17.—Kinetics of oxidation–reduction reaction catalysed by electron transfer through the solid: an electrochemical treatment

Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases ◽

10.1039/f19797501507 ◽

1979 ◽

Vol 75 (0) ◽

pp. 1507 ◽

Cited By ~ 48

Author(s):

Michael Spiro

Keyword(s):

Electron Transfer ◽

Heterogeneous Catalysis ◽

Electrochemical Treatment ◽

Reduction Reaction ◽

Kinetics Of Oxidation ◽

Oxidation Reduction ◽

Oxidation Reduction Reaction ◽

Kinetics Of

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Reactor with pulse convection for following the oxidation-reduction reaction kinetics by the stop-flow method using a solid indicator electrode

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19743024 ◽

1974 ◽

Vol 39 (11) ◽

pp. 3024-3029 ◽

Cited By ~ 1

Author(s):

A. Tockstein ◽

F. Skopal

Keyword(s):

Reaction Kinetics ◽

Reduction Reaction ◽

Indicator Electrode ◽

Flow Method ◽

Oxidation Reduction ◽

Oxidation Reduction Reaction ◽

Stop Flow

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In-situ stabilization of silver nanoparticles in polymer hydrogels for enhanced catalytic reduction of macro and micro pollutants

Zeitschrift für Physikalische Chemie ◽

10.1515/zpch-2020-1721 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Luqman Ali Shah ◽

Rida Javed ◽

Mohammad Siddiq ◽

Iram BiBi ◽

Ishrat Jamil ◽

...

Keyword(s):

Catalytic Reduction ◽

Thermo Gravimetric Analysis ◽

Activation Parameters ◽

Reduction Reaction ◽

Gravimetric Analysis ◽

X Ray Diffraction ◽

In Situ Stabilization ◽

Hybrid Hydrogels ◽

Kinetics Of

AbstractThe in-situ stabilization of Ag nanoparticles is carried out by the use of reducing agent and synthesized three different types of hydrogen (anionic, cationic, and neutral) template. The morphology, constitution and thermal stability of the synthesized pure and Ag-entrapped hybrid hydrogels were efficiently confirmed using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and thermo gravimetric analysis (TGA). The prepared hybrid hydrogels were used in the decolorization of methylene blue (MB) and azo dyes congo red (CR), methyl Orange (MO), and reduction of 4-nitrophenol (4-NP) and nitrobenzene (NB) by an electron donor NaBH4. The kinetics of the reduction reaction was also assessed to determine the activation parameters. The hybrid hydrogen catalysts were recovered by filtration and used continuously up to six times with 98% conversion of pollutants without substantial loss in catalytic activity. It was observed that these types of hydrogel systems can be used for the conversion of pollutants from waste water into useful products.

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Pseudomonas aeruginosa transition from environmental generalist to human pathogen

Avances en Ciencias e Ingeniería ◽

10.18272/aci.v13i1.2225 ◽

2021 ◽

Vol 13 (1) ◽

pp. 11

Author(s):

Gabriela Vasco ◽

Gabriel Trueba

Keyword(s):

Pseudomonas Aeruginosa ◽

Human Body ◽

Biofilm Formation ◽

Reduction Reaction ◽

Human Pathogen ◽

Opportunistic Bacteria ◽

Oxidation Reduction ◽

Mammalian Tissues ◽

Oxidation Reduction Reaction ◽

Source Sink

Opportunistic bacteria Pseudomonas aeruginosa is one of the major concerns as an etiological agent of nosocomial infections in humans. Many virulence factors used to colonize the human body are the same as those used by P. aeruginosa to thrive in the environment such as membrane transport, biofilm formation, oxidation/reduction reaction, among others. P. aeruginosa origin is mainly from the environment, the adaptation to mammalian tissues may follow a source-sink evolution model; the environment is the source of many lineages, some of them capable of adaptation to the human body. Some lineages may adapt to humans and go through reductive evolution in which some genes are lost. The understanding of this process may be critical to implement better methods to control outbreaks in hospitals.

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