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5.7 Ternary system nitroethane-3-methylpentane-cyclohexane

Figure 5.52: Scaling function plots according to the Bhattacharjee-Ferrell theory, with Ω1/2 = 2.1; Left Figure: ternary mixture α′; Right figure: ternary mixture α′′; Lower figure: ternary mixture at the col point. Open symbols denote run 1 and full symbols run 2.

tribution, represented by the Debye-term, did not impose a significant influence on this behavior. In the range of ε ≥0.04 the values of SBF are constant in a large reduced tem- perature range and displayed some kind of ”background behavior”, Sbg BF, Fig.(5.53). In the critical mixture α′ Sbg BF ≃0.85·10−5s0.94m−1, at the col point Sbg BF ≃1.39·10−5s0.94m−1

and for α′′ Sbg BF ≃1.20 · 10−5s0.94m−1. In comparison, with the binary critical mixture (NE-CH), Sbg BF ≃0.8 · 10−5s0.94m−1 and with the system (NE-3MP) the largest critical amplitude, Sbg BF ≃3.02·10−5s0.94m−1 emerges. As mentioned before, the behavior of the sound attenuation corresponds with the shape of the fluctuation correlation length versus the weight fraction of (3MP). A question is whether there is some corresponding relation

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