Densities of methanol-water mixtures at 350 C and 20-35 MPa have been measured with the Laser-Doppler vibrating densimeter. Excess molar volumes of methanol-water mixture, which were evaluated from the measured densities, changed from negative to positive with increasing the methanol composition. This behavior may result from the comparableness in the balance between attractive interaction and repulsive interaction at the condition studied. This characteristic feature of composition dependence of aqueous solution at high temperature and pressure was investigated from microscopic view point by using radial distribution functions, internal energies, and self-diffusion coefficients from molecular dynamics calculations.
Compounds
#
Formula
Name
1
CH4O
methanol
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.