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The (liquid + liquid) critical phenomena of (a polar liquid + an n-alkane) IV. Coexistence curves of (N,N-dimethylacetamide + nonane)

✍ Scribed by An Xueqin; Zhao Haihong; Shen Weiguo

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 203 KB
Volume: 28
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1996.0102

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✦ Synopsis

The coexistence curves of liquid (N,N-dimethylacetamide + nonane) have been determined within 20 K of the critical temperature by measurements of refractive index n. The critical amplitudes B and the critical exponents b have been deduced from (T, n), (T, x), and (T, f) curves. The experimental value of b is consistent with theoretical prediction. The results have also been analysed to determine Wegner correction terms when b and D are fixed at the theoretical values and to examine the behaviour of the diameters of the coexistence curves.

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