Volume : III, Issue : III, March - 2014
Evaluation of Protonation Constants of L–Asparagine and Maleic Acid in Aqueous and Aqueous Solutions of Ethylene Glycol
Choppa Nageswara Rao, Malla Ramanaiah, B. B. V. Sailaja
Abstract :
The solute–solvent interactions of L–asparagine and maleic acid have been studied in 0–50% v/v ethylene glycol–water media using the pH–metric method. The protonation constants have been calculated with the computer program MINIQUAD75. Selection of the best fit chemical model of the acid–base equiliia is based on standard deviation in protonation constants and residual analysis using crystallographic R–factor and sum of squares of residuals in all mass balance equations. Linear variation of protonation constants with inverse of dielectric constant of the solvent mixture has been attributed to the dominance of the electrostatic forces. Distributions of species, protonation equiliia and effect of influential parameters on the protonation constant have also been presented.
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DOI : 10.36106/ijsr
Cite This Article:
CHOPPA NAGESWARA RAO, MALLA RAMANAIAH, B.B.V.SAILAJA Evaluation of Protonation Constants of L-Asparagine and Maleic Acid in Aqueous and Aqueous Solutions of Ethylene Glycol International Journal of Scientific Research, Vol.III, Issue.III March 2014
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CHOPPA NAGESWARA RAO, MALLA RAMANAIAH, B.B.V.SAILAJA Evaluation of Protonation Constants of L-Asparagine and Maleic Acid in Aqueous and Aqueous Solutions of Ethylene Glycol International Journal of Scientific Research, Vol.III, Issue.III March 2014
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