The structure of mixtures of water and acetone derived from their cohesive energy densities and internal pressures

Yizhak Marcus

doi:10.1016/j.molliq.2020.112801

The structure of mixtures of water and acetone derived from their cohesive energy densities and internal pressures

Yizhak Marcus

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The cohesive energy densities ced and the internal pressures P_int of aqueous acetone mixtures are calculated from literature data for the entire composition range at 298.15 K at saturation pressures. The ratios P_int/ced are measures of the ‘structuredness’ of the studied fluids, the small values noted signify ‘tight’ structures, due to the hydrogen bonding. The ‘tighter’ the structure, the larger is the surface tension of the mixtures. This structural feature diminishes in intensity as the temperature and the acetone contents are increased.

Original language	English
Article number	112801
Journal	Journal of Molecular Liquids
Volume	320
DOIs	https://doi.org/10.1016/j.molliq.2020.112801
State	Published - 15 Dec 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Aqueous acetone mixtures
Cohesive energy density
Internal pressure
Structure of binary liquid mixtures

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10.1016/j.molliq.2020.112801

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abstract = "The cohesive energy densities ced and the internal pressures Pint of aqueous acetone mixtures are calculated from literature data for the entire composition range at 298.15 K at saturation pressures. The ratios Pint/ced are measures of the {\textquoteleft}structuredness{\textquoteright} of the studied fluids, the small values noted signify {\textquoteleft}tight{\textquoteright} structures, due to the hydrogen bonding. The {\textquoteleft}tighter{\textquoteright} the structure, the larger is the surface tension of the mixtures. This structural feature diminishes in intensity as the temperature and the acetone contents are increased.",

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N2 - The cohesive energy densities ced and the internal pressures Pint of aqueous acetone mixtures are calculated from literature data for the entire composition range at 298.15 K at saturation pressures. The ratios Pint/ced are measures of the ‘structuredness’ of the studied fluids, the small values noted signify ‘tight’ structures, due to the hydrogen bonding. The ‘tighter’ the structure, the larger is the surface tension of the mixtures. This structural feature diminishes in intensity as the temperature and the acetone contents are increased.

AB - The cohesive energy densities ced and the internal pressures Pint of aqueous acetone mixtures are calculated from literature data for the entire composition range at 298.15 K at saturation pressures. The ratios Pint/ced are measures of the ‘structuredness’ of the studied fluids, the small values noted signify ‘tight’ structures, due to the hydrogen bonding. The ‘tighter’ the structure, the larger is the surface tension of the mixtures. This structural feature diminishes in intensity as the temperature and the acetone contents are increased.

KW - Aqueous acetone mixtures

KW - Cohesive energy density

KW - Internal pressure

KW - Structure of binary liquid mixtures

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JO - Journal of Molecular Liquids

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The structure of mixtures of water and acetone derived from their cohesive energy densities and internal pressures

Abstract

Bibliographical note

Keywords

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