Apparent molar volumes Vm of glycylglycine in aqueous KCl solutions have been obtained from densities at 298.15 and 308.15K measured with a vibrating-tube densimeter. These data have been used to deduce partial molar volumes of transfer delta(trs)V from water to different KCl-water mixtures. delta(trs)V values are positive. This result arises from the interaction of KCl with the charged centers of glycylglycine. The results show that delta(trs)V depends less on temperature. Hydration numbers are calculated from Vm data and delta(trs)V are interpreted in terms of various interactions.
Compounds
#
Formula
Name
1
C4H8N2O3
glycylglycine
2
ClK
potassium chloride
3
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.