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Excess molar volumes of (a polar liquid + an aromatic hydrocarbon) at the temperature 298.15 K IV. (1-methyl-2-pyrrolidinone + an aromatic hydrocarbon)

✍ Scribed by Xiuhui Liu; Zhongxing Su; Haijun Wang; Xiaoxian Zhong

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 395 KB
Volume: 28
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1996.0027

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✦ Synopsis

Excess molar volumes have been measured by means of a continuous-dilution dilatometer for (1-methyl-2-pyrrolidinone+benzene, toluene, o-oxylene, m-xylene, p-xylene, ethylbenzene, or styrene) at T=298.15 K. The V E m values were negative over the entire range of composition for all the binary mixtures. =V E m (minimum)= and =V E m (x=0.5)= values of this series decrease in the sequence: C6H5CH1CH2 q C6H5CH3 q p-C6H4(CH3)2 q C6H6 q m-C6H4(CH3)2 q o-C6H4(CH3)21C6H5CH2CH3. The results were compared with the results of the binary mixtures containing other polar liquids, and show that the interactions between 1-methyl-2-pyrrolidinone molecules and the above-noted aromatic hydrocarbon molecules are very strong.

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