Excess Enthalpies of 2,4-Pentanedione + (Methanol, + Ethanol, + 1-Propanol, and + 2-Propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa

Excess Enthalpies of 2,4-Pentanedione + (Methanol, + Ethanol, + 1-Propanol, and + 2-Propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa

Molar excess enthalpies of four binary systems for 2,4-pentanedione + (methanol, + ethanol, + 1-propanol, and + 2-propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa were determined by a high-pressure flow-mixing isothermal microcalorimeter. The molar excess enthalpies increas...

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Veröffentlicht in:Journal of chemical and engineering data 2008-01, Vol.53 (1), p.194-198
Hauptverfasser: Li, Shengying, Yan, Weidong, Dong, Hong
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Chemical thermodynamics
Chemistry
Exact sciences and technology
General and physical chemistry
Mixtures
Thermodynamic properties
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Dong, Hong
description Molar excess enthalpies of four binary systems for 2,4-pentanedione + (methanol, + ethanol, + 1-propanol, and + 2-propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa were determined by a high-pressure flow-mixing isothermal microcalorimeter. The molar excess enthalpies increased with an increase in the temperature and the molecular size of alcohols and decreased slightly with an increase in pressure. The experimental data were correlated by the Redlich–Kister equation and three local composition models (Wilson, NRTL, and UNIQUAC).
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The molar excess enthalpies increased with an increase in the temperature and the molecular size of alcohols and decreased slightly with an increase in pressure. 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subjects Chemical thermodynamics
Chemistry
Exact sciences and technology
General and physical chemistry
Mixtures
Thermodynamic properties
title Excess Enthalpies of 2,4-Pentanedione + (Methanol, + Ethanol, + 1-Propanol, and + 2-Propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa
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