Partial Molar Volumes of Glycine and DL-Alanine in Aqueous Ammonium Sulfate Solutions at (278.15, 288.15, 298.15 and 308.15) K.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43897095" target="_blank" >RIV/60461373:22340/14:43897095 - isvavai.cz</a>

Result on the web

<a href="http://link.springer.com/article/10.1007/s10953-014-0172-5" target="_blank" >http://link.springer.com/article/10.1007/s10953-014-0172-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10953-014-0172-5" target="_blank" >10.1007/s10953-014-0172-5</a>

Result language

angličtina

Original language name

Partial Molar Volumes of Glycine and DL-Alanine in Aqueous Ammonium Sulfate Solutions at (278.15, 288.15, 298.15 and 308.15) K.

Original language description

In this work, the partial molar volumes of glycine and DL-alanine in aqueous solutions of ammonium sulfate at (0.0, 0.1, 0.3, 0.7, and 1.0) molal are addressed between 278.15 and 308.15 K. Transfer volumes were obtained, which are larger for glycine thanDL-alanine. On the contrary, the hydration numbers are higher for DL-alanine than glycine, and dehydration of the amino acids is observed, rising the temperature or salt molality. The data suggest that interactions between ion and charged/hydrophilic groups are predominant and by applying the methodology proposed by Friedman and Krishnan it was concluded that they are mainly pair wise. A group-contribution scheme has been successfully applied to the pairwise volumetric interaction coefficient. Finally,the dehydration effect on glycine, alanine and serine in the presence of different electrolytes has been rationalized in terms of the charge density and a parameter accounting for the cation hydration.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BJ - Thermodynamics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal Solution Chem.

ISSN

0095-9782

e-ISSN

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Volume of the periodical

43

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

17

Pages from-to

972-988

UT code for WoS article

000338666900011

EID of the result in the Scopus database

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