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Excess molar volumes, and excess molar enthalpies of (N-methyl-2-pyrrolidinone +  an ether ) at the temperature 298.15 K

✍ Scribed by U Domańska; J Łachwa; T.M Letcher

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
109 KB
Volume
34
Category
Article
ISSN
0021-9614

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✦ Synopsis

Excess molar volumes V E m have been calculated from measured density values over the whole composition range at T = 298.15 K and atmospheric pressure for six {N -methyl-2-pyrrolidinone + 1,1-dimethylethyl methyl ether, or dipropyl ether, or 1,1-dimethylpropyl methyl ether, or diisopropyl ether, or dibutyl ether, or dipentyl ether}. Excess molar enthalpies H E m were also measured for five {N -methyl-2-pyrrolidinone + 1,1-dimethylethyl methyl ether, or dipropyl ether, or 1,1-dimethylpropyl methyl ether, or diisopropyl ether, or dibutyl ether} at T = 298.15 K and atmospheric pressure. The results are discussed in terms of intermolecular associations. The experimental results have been correlated with the UNIQUAC and NRTL equations.

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