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Enthalpies of mixing and heat capacities of mixtures containing alcohols and n ‐alkanes with corn oil at 298.15 K
Author(s) -
González C.,
Resa J. M.,
Concha R. G.,
Goenaga J. M.
Publication year - 2004
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-004-0985-5
Subject(s) - endothermic process , chemistry , enthalpy , corn oil , methanol , hexane , heptane , octane , ethanol , mixing (physics) , organic chemistry , thermodynamics , food science , physics , adsorption , quantum mechanics
Enthalpies of mixing for mixtures containing alcohols (methanol, ethanol, 1‐propanol, 2‐propanol, 1‐butanol, and 2‐butanol) plus corn oil or n ‐alkanes ( n ‐hexane, n ‐heptane, and n ‐octane) plus corn oil were measured at 298.15 K and atmospheric conditions. The enthalpy was measured in the range of concentrations in which alcohols were miscible with the vegetable oil. Results were correlated by the Redlich‐Kister equation. The mixing of alcohols with corn oil was strongly endothermic, whereas values obtained for the binaries containing n ‐alkanes were slightly endothermic. Thus, heat capacities were calculated for all the systems studied.