IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Acetonitrile with 1-Tetradecanol

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Components:
   (1) 1-Tetradecanol; C14H30O; [112-72-1]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Evaluator:
   Valerii P. Sazonov and Nikolai V. Sazonov, Technical University, Samara, Russia, November, 2001

Critical Evaluation:

           Solubilities in the system comprising acetonitrile (1) and 1-tetradecanol (2) have been reported in two publications. Hoerr et al.¹ studied the phase equilibrium of the liquid-liquid-solid system and the mutual solubility of (1) and (2) between 283 and 322 K by the synthetic method. Schmid et al.² measured of the upper critical temperature solution of components (1) and (2) in the course of study of binary solubilities of acetonitrile and (C₁₀-C₂₀) alcohols. In addition to these data Francis³ reported the upper critical solution temperature of this system.
        The upper critical solution temperature has been reported as 317.7 K,² 321.2 K,³ and 321.6 K.¹ The UCST by Schmid et al.² is rejected. The average of the remaining values, UCST = 321.4 ± 0.2 K, is treated as tentative. The corresponding critical solution composition has been calculated by evaluator as x_cl = 0.84 from the data.¹
        Monotectic equilibrium has been reported to occur at 306.7 K.¹
        All experimental values reported¹ 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:

a₁ = 0.4516, a₂= 1.1462, b₁ = 0.2848, b₂ = -2.0623

(mean standard error of estimate was 0.0020).
        For approximation x_cl and UCST from Hoerr et al.¹ 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 the following table. This relationship, together with experimental results,¹ are also presented in Fig. 15.
        Solubilities in the system comprising acetonitrile (1) and 1-tetradecanol (2) have been reported in two publications. Hoerr et al.¹ studied the phase equilibrium of the liquid-liquid-solid system and the mutual solubility of (1) and (2) between 283 and 322 K by the synthetic method. Schmid et al.² measured of the upper critical temperature solution of components (1) and (2) in the course of study of binary solubilities of acetonitrile and (C₁₀-C₂₀) alcohols. In addition to these data Francis³ reported the upper critical solution temperature of this system.
        The upper critical solution temperature has been reported as 317.7 K,² 321.2 K,³ and 321.6 K.¹ The UCST by Schmid et al.² is rejected. The average of the remaining values, UCST = 321.4 ± 0.2 K, is treated as tentative. The corresponding critical solution composition has been calculated by evaluator as x_cl = 0.84 from the data.¹
        Monotectic equilibrium has been reported to occur at 306.7 K.¹
        All experimental values reported¹ 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:

a₁ = 0.4516, a₂= 1.1462, b₁ = 0.2848, b₂ = -2.0623

(mean standard error of estimate was 0.0020).
        For approximation x_cl and UCST from Hoerr et al.¹ 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 the following table. This relationship, together with experimental results,¹ are also presented in Fig. 15.

Experimental Data:   (Notes on the Nomenclature)

Calculated mutual solubility of acetonitrile (1) and 1-tetradecanol (2)

T/K	102 * Mass Fraction w1	Mole Fraction x1	Comment(s)
308.2	15.5	0.489	Alcohol-rich phase
313.2	20.6	0.575	Alcohol-rich phase
318.2	28.9	0.680	Alcohol-rich phase
319.2	31.5	0.706	Alcohol-rich phase
320.2	34.9	0.737	Alcohol-rich phase
320.7	37.2	0.756	Alcohol-rich phase
321.2	40.6	0.781	Alcohol-rich phase
321.4	42.6	0.795	Alcohol-rich phase
321.5	44.1	0.805	Alcohol-rich phase
308.2	86.5	0.971	Acetonitrile-rich phase
313.2	81.7	0.959	Acetonitrile-rich phase
318.2	73.4	0.935	Acetonitrile-rich phase
319.2	70.6	0.926	Acetonitrile-rich phase
320.2	66.8	0.913	Acetonitrile-rich phase
320.7	64.3	0.904	Acetonitrile-rich phase
321.2	60.5	0.889	Acetonitrile-rich phase
321.4	58.4	0.88	Acetonitrile-rich phase
321.5	56.6	0.872	Acetonitrile-rich phase

View Figure 15 for this Evaluation

References: (Click a link to see its experimental data associated with the reference)

   1  Hoerr, C.W.; Harwood, H.J.; Ralston, A.W., J. Org. Chem. 9, 267 (1944).
   2  Schmid, H.H.O.; Mangold, H.K.; Lundberg, W.O., Microchem. J. 9, 134 (1965).
   3  Francis, A.W., Critical Solution Temperature, Washington, Adv. Chem. Ser. 31 (1961).

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Last updated: February 18, 2015 (Created: August 17, 2007)