Thermodynamic Analysis of Homologous α-Amino Acids in Aqueous Potassium Fluoride Solutions at Different Temperatures

2012 ◽  
Vol 41 (4) ◽  
pp. 646-679 ◽  
Author(s):  
K. Rajagopal ◽  
S. Edwin Gladson
Keyword(s):  
Amino Acids ◽  
Thermodynamic Analysis ◽  
Potassium Fluoride ◽  
Different Temperatures

Thermodynamic (volume and viscosity) of amino acids in aqueous hydroxypropyl-β-cyclodextrin solutions at different temperatures

2017 ◽  
Vol 113 ◽  
pp. 388-393 ◽  
Author(s):  
Yu Chen ◽  
Ranran Fu ◽  
Jingjing Xu ◽  
Wenting Du ◽  
Xu Wang ◽  
...  
Keyword(s):  
Amino Acids ◽  
Different Temperatures

scholarly journals Kinetics of Oxidation of Amino Acids by a Newly Synthesized Oxidant, N-Chloropyrazinamide in Aqueous Acetic Acid Medium

2013 ◽  
Vol 16 ◽  
pp. 1-8
Author(s):  
S. Parimala Vaijayanthi ◽  
N. Mathiyalagan
Keyword(s):  
Amino Acids ◽  
Acetic Acid ◽  
Acid Medium ◽  
Activation Parameters ◽  
Aqueous Acetic Acid ◽  
Acetic Acid Medium ◽  
Kinetics Of Oxidation ◽  
Different Temperatures ◽  
Probable Reaction ◽  
Kinetics Of

The kinetics of oxidation of amino acids namely, alanine, glycine, leucine, phenyl alanine and valine by N-chloropyrazinamide (NCPZA) in aqueous acetic acid medium in the presence of hydrochloric acid have been investigated. The observed rate of oxidation is first order in [NCPZA], [H+] and [Clˉ]. The order with respect to [amino acid] is zero. The rate of oxidation increases with increase in the percentage of acetic acid. The reaction rate increases slightly with increase in ionic strength, while retards with addition of pyrazinamide. Arrhenius and thermodynamic activation parameters have been evaluated from Arrhenius plot by studying the reaction at different temperatures. A most probable reaction mechanism has been proposed and an appropriate rate law is deduced toaccount for the observed kinetic data.

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