Abstract
The excess molar volumes for binary mixtures of trichloroethylene, C2Cl3H, and tetrachloroethylene, C2Cl4, with 2-[2-(2-methoxyethoxy)ethoxy]ethanol, CH3O(CH2)2O(CH2)2O(CH2)2OH, 2-[2-(2-ethoxyethoxy)ethoxy]ethanol, C2H5O(CH2)2O(CH2)2O(CH2)2OH, and 2-[2-(2-butoxyethoxy)ethoxy]ethanol, C4H9O(CH2)2O(CH2)2O(CH2)2OH, have been measured as a function of composition at 298.15 and 308.15 K. The measurements were determined using a continuous-dilution dilatometer. The excess volumes are negative for trichloroethylene mixtures with the exception of 2-[2-(2-methoxyethoxy)ethoxy]ethanol and are positive for tetrachloroethylene + 2-[2-(2-methoxyethoxy)ethoxy]ethanol, + 2-[2-(2-ethoxyethoxy)ethoxy]ethanol, and + 2-[2-(2-butoxyethoxy)ethoxy]ethanol over the whole composition range at both temperatures. The excess volumes decrease in magnitude as the alkyl chain length of the alkoxyethanol increases. A qualitative interpretation of the results is presented.
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