Partial molar volumes of some α-aminocarboxylic acids in water
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 77 (5) , 963-968
- https://doi.org/10.1039/f19817700963
Abstract
Partial molar volumes of a number of α-aminocarboxylic acids in water at 25°C are measured. The results indicate that 4.33 ± 0.39 water molecules hydrate an α-amino acid. Contributions of the side chains or their constituent parts to the partial molar volumes are deduced. Volumes of proton ionization for α-amino acids with nitrogen-containing side chains are calculated and they indicate the absence of any significant electrostatic effects by terminal charged groups.Keywords
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