Author： Haijun W. Chao Z. Mingzhi C. Hulin L.
Publisher： Academic Press
ISSN： 0021-9614
Source： Journal of Chemical Thermodynamics, Vol.27, Iss.9, 1995-09, pp. : 991-996
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Abstract
Excess volumes have been measured by means of a continuous-dilution dilatometer for ( N,N -dimethylformamide + benzene or toluene or o -xylene or p -xylene or ethylbenzene or styrene) at the temperature 298.15 K. V is negative over the entire range of composition for all mixtures. | V m (minimum)| and | V m ( x = 0.5)| values of this series decrease in the sequence: C 6 H 5 CH = CH 2 > C 6 H 5 CH 3 > p -C 6 H 4 (CH 3 ) 2 ~ C 6 H 6 > m -C 6 H 4 (CH 3 ) 2 > o -C 6 H 4 (CH 3 ) 2 ~ C 6 H 5 CH 2 CH 3 . The results show that there are quite strong interactions between N,N -dimethylformamide molecules and aromatic-hydrocarbon molecules.
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