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  • 1980-1984  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 112 (1981), S. 415-420 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es werden thermodynamische Daten (isobare Siedetemperatur—Zusammensetzung der flüssigen Phase) und die Azeotrope der binären Systeme aus 1-Octen,cis-4-Octen undtrans-4-Octen mit Methylcellosolv (2-Methoxyethanol), 1-Butanol und Tetrachlorethen bei Drücken von 760 mm Hg (101,325 kPa) und 200 mm Hg (26,664 kPa) angegeben. DieWilsongleichung wurde zur Vorhersage der Aktivitätskoeffizienten in flüssiger Phase eingesetzt. Die so erhaltenen415-2 Funktionen werden für Mischungen der drei isomerenn-Octene mit jeweils einem gemeinsamen Lösungsmittel verglichen.
    Notes: Abstract Measurements of isobaric temperature—liquid composition are reported in the binary systems formed from 1-octene,cis-4-octene andtrans-4-octene with methyl cellosolve (2-methoxyethanol), 1-butanol and tetrachloroethene at pressures of 760 and 200 mm Hg (101.325 and 26.664 kPa). These systems have minimum boiling azeotropes. TheWilson equation is used to predict the liquid phase activity coefficients. The γ i −χ i functions thus obtained are compared in the systems containing a solvent common to the three isomericn-octenes.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 111 (1980), S. 607-617 
    ISSN: 1434-4475
    Keywords: n-Alkynes ; Phase equilibria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The vapour-liquid equilibrium data obtained from isobarict-x-measurements have been used for calculation of the group UNIFAC parameters and excess free enthalpyG E of binary mixturesn-alkanes with isomericn-alkynes. The UNIFAC model gives satisfactory predictions for the systems studied. The temperature dependence ofG E was estimated on the basis of the heats of mixing measured earlier. The influence of the position of triple bond in the molecules ofn-alkynes on the excess thermodynamic functions is considered.
    Type of Medium: Electronic Resource
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