The spinodal approximation by the method of scattering of light in ( n-hexane + n-tetradecafluorohexane)

The phase-separation curve and the spinodal have been determined for 18 compositions by the results of measuring the temperature dependence of the scattered-light intensity in ( n-hexane + n-tetradecafluorohexane). The paper shows that the experimental results described by { (x′ − x″) x c } p ∼ { (T...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 1984-01, Vol.16 (3), p.267-272
Main Authors: Pozharskaya, G.I, Kasapova, N.L, Skripov, V.P, Kolpakov, Yu.D
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Liquid-liquid equilibria
Liquid-solid equilibria
Liquid-vapor equilibria
Others (including liquid-liquid-vapor equilibria)
Phase equilibria
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Summary:The phase-separation curve and the spinodal have been determined for 18 compositions by the results of measuring the temperature dependence of the scattered-light intensity in ( n-hexane + n-tetradecafluorohexane). The paper shows that the experimental results described by { (x′ − x″) x c } p ∼ { (T c − T p ) T c } β , and { (x′ − x″) x c } sp ∼ { (T c − T sp ) T c } β sp , are in accordance with scaling theory. It has been found that β = (0.35 ± 0.01) and β sp = (0.37 ± 0.03), in accordance with the results obtained by other authors.
ISSN:0021-9614
1096-3626
DOI:10.1016/0021-9614(84)90088-0