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Excess molar enthalpies of eight binary mixtures containing 1,2-epoxybutane + ethyl alkanoates at 298.15 K

Authors
Journal
Thermochimica Acta
0040-6031
Publisher
Elsevier
Publication Date
Volume
319
Identifiers
DOI: 10.1016/s0040-6031(98)00390-6
Keywords
  • Thermodynamics And Calorimetry

Abstract

Abstract Excess molar enthalpies, H E m, have been measured using a flow microcalorimeter at 298.15 K and at atmospheric pressure for the eight mixtures containing 1,2-epoxybutane with ethyl acetate, ethyl propanoate, ethyl butyrate, ethyl pentanoate, ethyl hexanoate, ethyl heptanoate, ethyl octanoate and ethyl decanoate. Excess heats of mixing, H E m, are positive for all the mixtures and increase with the chain length of the alkanoate, with the exception of ethyl acetate whose H E m values were between those of ethyl pentanoate and ethyl hexanoate. Results have been correlated in terms of the Redlich–Kister equation and qualitatively discussed in terms of molecular interactions.

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