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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with 1-Tetradecanol
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 (C
10
-C
20
) alcohols. In addition to these data Francis
3
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 reported
1
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:
a
1
= 0.4516, a
2
= 1.1462, b
1
= 0.2848, b
2
= -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 (C
10
-C
20
) alcohols. In addition to these data Francis
3
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 reported
1
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:
a
1
= 0.4516, a
2
= 1.1462, b
1
= 0.2848, b
2
= -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
10
2
* Mass Fraction w
1
Mole Fraction x
1
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).