Densities, I, and coefficients of compressibility, k, of aqueous solutions of N,N,Ntrimethylglycine (betaine) were measured within concentration range from 0.1 to 4.0 mol*kg-1 at p=(0.1, 10, 25, 50, 75, 100) MPa and T=(278.15, 288.15, 298.15, 308.15 323.15) K. The experimental data have been used to calculate the following volumetric parameters : the apparent molar volume of betaine, V.,2, the molar isothermal compression, KT, and the molar isobaric expansion, EP, of solutions at all pressures and temperatures studied. Some parameters for infinite dilute solution of betaine in water were also obtained: limiting partial molar volumes, , limiting partial molar isothermal compressions, , and limiting partial molar isobaric expansions, . The variation of all these parameters with composition, temperature, and pressure were discussed from the viewpoint of intermolecular interactions in the system.
Compounds
#
Formula
Name
1
C5H11NO2
(trimethylammonio)acetate
2
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.