In addition to these data McLure et al.⁸ determined the upper critical solution temperatures of binary systems composed of acetonitrile + alkanes (C₅-C₁₈). All original data are compiled in the data sheets immediately following this Critical Evaluation.
        The hydrocarbon-rich phase data and especially acetonitrile-rich phase data of Lakhanpal et al⁴ disagree markedly from all other studies and are rejected.

        The upper critical solution temperature of this system has been reported as 350.2 K,^3,8 these data are in excellent agreement and this value is recommended. The corresponding critical solution composition has been reported as x_cl = 0.583.³
        All experimental values reported^1-7 (except Lakhanpal et al.⁴ ) have been approximated by an equation based on the scaling law (described in the introduction to this volume) for which the following parameters have been derived:

(mean standard error of estimate was 0.0198).
         For approximation values of x_cl and UCST determined by Sinegubova³ have been used. In the opinion of the evaluators, the mutual solubilities calculated by this equation may be treated as tentative. The results of calculations for the selected temperatures are presented in Table 2. This relationship together with experimental data ^1-7 are also presented in Fig. 8.
        Quantitative solubility data for the system acetonitrile (1) and hexane (2) have been reported in the publications listed in Table 1.

        In addition to these data McLure et al.⁸ determined the upper critical solution temperatures of binary systems composed of acetonitrile + alkanes (C₅-C₁₈). All original data are compiled in the data sheets immediately following this Critical Evaluation.
        The hydrocarbon-rich phase data and especially acetonitrile-rich phase data of Lakhanpal et al.⁴ disagree markedly from all other studies and are rejected.

        The upper critical solution temperature of this system has been reported as 350.2 K,^3,8 these data are in excellent agreement and this value is recommended. The corresponding critical solution composition has been reported as x_cl = 0.583.³
        All experimental values reported^1-7 (except Lakhanpal et al.⁴ ) have been approximated by an equation based on the scaling law (described in the introduction to this volume) for which the following parameters have been derived:

(mean standard error of estimate was 0.0198).
         For approximation values of x_cl and UCST determined by Sinegubova³ have been used. In the opinion of the evaluators, the mutual solubilities calculated by this equation may be treated as tentative. The results of calculations for the selected temperatures are presented in Table 2. This relationship together with experimental data ^1-7 are also presented in Fig. 8.

Experimental Data:   (Notes on the Nomenclature)