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The measurements of coexistence curves and turbidity for {xC6H5NO2  + (1 − x)CH3(CH2)11CH3} in the critical region

✍ Scribed by C. Zhou; X. An; F. Jiang; H. Zhao; W. Shen

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
141 KB
Volume
31
Category
Article
ISSN
0021-9614

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✦ Synopsis

The coexistence curves and the turbidity of (nitrobenzene + tridecane) have been measured, and the critical amplitudes and exponents relating to the difference in density variables of two coexisting phases, the correlation length, and the osmotic compressibility have been calculated. The values of exponents are consistent with the theoretical predictions. The experimental results of the coexistence curves have also been analysed to examine Wegner correction terms and the behaviour of the diameter of the coexistence curves. A combination of the Wegner equation and the expression for the diameter have been used to successfully describe the coexistence curves. The molar mass dependence of the critical amplitudes of the correlation length and the osmotic compressibility has been discussed.

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