scholarly journals Analysis of Kinetics Parameters Controlling Atomistic Reaction Process of a Quasi-Reversible Electrode System

Electrolysis ◽  
10.5772/51896 ◽  
2012 ◽  
Author(s):  
Yuji Imashimizu
2013 ◽  
Vol 652-654 ◽  
pp. 703-706
Author(s):  
Xiao Ni Shi ◽  
Bo Wu ◽  
Wei Lu Zhang

A general kinetics equation was deduced for bifunctional polyesterification taken account of the changes of density during the reaction process. Kinetics parameters were given by using mol•L-1and mol•kg-1as the unit, respectively. The results show that the kinetic parameters expressed with mol•L-1are greater than those with mol•kg-1in the system of Neopentyi glycol/Maleic anhydride, and particularly the relative errors between them are increased along with the rise of temperatures.


2009 ◽  
Author(s):  
James C. Christensen ◽  
Justin R. Estepp ◽  
Glenn F. Wilson ◽  
Iris M. Davis
Keyword(s):  

2017 ◽  
Vol 68 (5) ◽  
pp. 903-907
Author(s):  
Ecaterina Anca Serban ◽  
Ioana Diaconu ◽  
Elena Ruse ◽  
Georgiana Ileana Badea ◽  
Adriana Cuciureanu ◽  
...  

Indole-3-acetic acid is a growth phytohormone considered the most important representative of auxin class. This paper presents the assessment of some kinetic parameters in the process of transport of indole-3-acetic acid taking into consideration the kinetic model of consecutive irreversible first order reactions. It was pursued the influence upon the process of parameters such as: feed phase concentration, stripping phase concentration in the presence of two type carriers: tributyl phosphate (TBP) and trioctylphosphine oxide (TOPO). Depending on these transport parameters were calculated kinetics parameters such as: pseudo-first-order apparent membrane entrance and exit rate constants, the maximum flux at the entrance and exit out of the membrane. The highest values of the transport flux is obtained in the presence of carrier trioctylphosphine oxide (TOPO) at the concentration in the feed phase of 10-4 mol/L indole-3-acetic acid and a concentration of 10--2mol/L NaOH in the stripping phase.


2008 ◽  
Vol 59 (1) ◽  
pp. 101-105
Author(s):  
Irina Zarafu ◽  
Lucia Veronica Ivan ◽  
Iuliana Harasim

3,5-disubstituted-1,2,4-tiadiazoles with substituted-styril and heterocycle-vinyl were obtained by extending the method which implies the use of 3,5-disubstituted-1,2,4-ditiazolium salts as precursors [1-4]. A comparative study of the reaction process in the case of perchlorates, diacide phosphates, tribromides and 3,5-distyrile-dithiazolium triiodides, taken as etalon, was perfomed. Good yields were obtained when using perchlorates, phosphates and triiodides. The reaction was made by heating the reaction mixture and by ultrasound exposure. The structure of the compounds was confirmed by chemical and physical analysis and the data obtained were identical to those of 3,5-disubstituted-1,2,4-tiadiazoles obtained by another methods [5,6]. The biological (antibacterial and anticancer) activity of the synthesized compounds was tested and the results indicated a medium activity.


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