Isothermal vapour-liquid equilibria in cyclohexanone + dichloroalkane binary mixtures at temperatures from 298.15 to 318.15K | Zendy

Dana Drăgoescu | Zendy; Alexandru Barhala | Zendy; Mariana Teodorescu | Zendy; Daniela Chiscan | Zendy

Open Access

Isothermal vapour-liquid equilibria in cyclohexanone + dichloroalkane binary mixtures at temperatures from 298.15 to 318.15K

Author(s) -

Dana Drăgoescu,

Alexandru Barhala,

Mariana Teodorescu,

Daniela Chiscan

Publication year - 2011

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc090127020d

Subject(s) - uniquac , non random two liquid model , thermodynamics , cyclohexanone , virial coefficient , isothermal process , activity coefficient , chemistry , binary number , phase (matter) , organic chemistry , mathematics , physics , arithmetic , aqueous solution , catalysis

The vapour pressures of binary mixtures of cyclohexanone + dichlo- roalkane (1,3-dichloropropane and 1,4-dichlorobutane) were measured at tem- peratures between 298.15 and 318.15 K. The vapour pressures vs. liquid phase composition data were used to calculate the activity coefficients of the two components and the excess molar Gibbs energies G E for the mixtures, using the Barker method and the Redlich-Kister, Wilson, NRTL and UNIQUAC equa- tions, taking into account the vapour phase imperfection in terms of the 2 nd virial coefficient. No significant difference between the G E values obtained with these equations was observed.

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