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Excess volumes of (a polar liquid + an aromatic hydrocarbon) at the temperature 298.15 K. V. (γ-Butyrolactone + an aromatic hydrocarbon)

✍ Scribed by Haijun Wang; Chao Zhu; Xiaoxian Zhou

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
198 KB
Volume
28
Category
Article
ISSN
0021-9614

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✦ Synopsis

Excess molar volumes have been measured by means of a continuous dilution dilatometer for (g-butyrolactone + benzene, or toluene, or o-xylene, or m-xylene, or p-xylene, or ethylbenzene, or styrene) at T = 298.15 K. The V E m values are negative over the entire range of composition for all the binary mixtures. The =V E m (minimum)= and =V E m (x = 0.5)= values of this series decrease in the sequence: C6H5CH.CH2 q C6H5CH3 q C6H6 q p-C6H4(CH3)2 q C6H5CH2CH3 1 m-C6H4(CH3)2 q o-C6H4(CH3)2. The results were compared with the results for binary mixtures containing other polar liquids, and showed that the interactions between g-butyrolactone molecules and the above-noted aromatic hydrocarbon molecules are very strong.

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## Excess volumes have been measured by means of a continuous-dilution dilatometer for or C6H5C2H5 or C6H5CH:CH2}] at the temperature 298.15 K. Values of V E m are negative over the entire range of composition for all mixtures. =V E m (minimum)= and =V E m (x=0.5)= values of this series decrease i