Excess enthalpies for 1,1,1-trichloroethane with alkanes, ketones, and esters
- Univ. Oldenburg, Oldenburg (Germany). Technische Chemie
Excess enthalpies provide quantitative information about the temperature dependence of the excess Gibbs energy G[sup E]. This information should therefore be used together with other results (vapor-liquid equilibria, liquid-liquid equilibria, limiting activity coefficients, and azeotropic data) for fitting simultaneously temperature-dependent G[sup E] model parameters or interaction parameters of group contribution methods. Although a large number of H[sup E] measurements have been published, results at temperatures other than 298.15 K are scarce. In this paper a flow calorimeter is described, and excess enthalpy data are given for the test systems n-hexane + cyclohexane, benzene + cyclohexane, and methanol + water at 298.15 K as well as for 1,1,1-trichloroethane + n-pentane, + n-heptane, + acetone, + 2-butanone, + methyl acetate, and + ethyl acetate at 363.15 K. These results were used for the systematic development of the group contribution method (modified UNIFAC) developed at Dortmund.
- OSTI ID:
- 6047440
- Journal Information:
- Journal of Chemical and Engineering Data; (United States), Journal Name: Journal of Chemical and Engineering Data; (United States) Vol. 38:1; ISSN JCEAAX; ISSN 0021-9568
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ACETIC ACID ESTERS
ACETONE
ALCOHOLS
ALKANES
AROMATICS
BENZENE
CALORIMETRY
CARBOXYLIC ACID ESTERS
CHLORINATED ALIPHATIC HYDROCARBONS
CYCLOALKANES
CYCLOHEXANE
DATA
ENERGY
ENTHALPY
EQUATIONS
EQUATIONS OF STATE
EQUILIBRIUM
ESTERS
EXPERIMENTAL DATA
FREE ENTHALPY
HALOGENATED ALIPHATIC HYDROCARBONS
HEPTANE
HEXANE
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
KETONES
METHANOL
METHYL ACETATE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PENTANE
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES