Excess enthalpies of 2-alkoxyethanols with trichloroethylene and tetrachloroethylene at 298.15 K

Excess enthalpies H E for binary mixtures of tricholorethylene and tetrachloroethylene with 2-alkoxyethanols at 298.15 K have been measured over the entire range of composition with Parr's 1451 solution calorimeter. The alkoxyethanols were 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol....

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Bibliographic Details
Published in:Thermochimica acta 1994-08, Vol.242, p.33-39
Main Authors: Venkatesulu, D., Rao, M.V.Prabhakara, Veeranna, D.
Format: Article
Language:English
Subjects:
Alkoxyethanol
Binary system
Calorimeter
Cellosolve
Chemical thermodynamics
Chemistry
Exact sciences and technology
Excess molar enthalpy
General and physical chemistry
Mixtures
Solution calorimetry
Thermodynamic properties
Trichloroethylene
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Summary:Excess enthalpies H E for binary mixtures of tricholorethylene and tetrachloroethylene with 2-alkoxyethanols at 298.15 K have been measured over the entire range of composition with Parr's 1451 solution calorimeter. The alkoxyethanols were 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol. The H E values are positive for the systems tetrachloroethylene + 2-alkoxyethanols, and a change in sign from negative to positive is observed for the systems trichloroethylene + 2-alkoxyethanols. The measured excess enthalpies decrease as the chain length of the alkoxyethanol increases.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(94)85006-2