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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with 1-Octadecanol
Components:
(1) 1-Octadecanol; C18H38O; [112-92-5]
NIST Chemistry WebBook
for detail
(2) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
Original Measurements:
Hoerr, C.W.; Harwood, H.J.; Ralston, A.W., J. Org. Chem. 9, 267 (1944).
Variables:
Temperature = 303 K to 336 K
Prepared By:
Valerii P. Sazonov and Nikolai V. Sazonov
Experimental Remarks:
The solubilities of acetonitrile (1) and 1-octadecanol (2) in mass percent including the region of immisciblity over the indicated temperature range were reported in graphical form and in a table. Monotectic equilibrium occurs at 52.5 °C (325.7 K, compiler). The upper critical solution temperature was extracted from the reported graphs by the compiler and found to be 63.6 °C (336.8 K).
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and 1-octadecanol (2)
t/°C
T/K
10
2
* Mass Fraction w
1
g
2
/100 g solution
Mole Fraction x
1
(compiler)
Comment(s)
30.0
303.2
-
0.3
-
Alcohol-rich phase
36.4 (c)
309.6
-
-
-
Alcohol-rich phase
40.0
313.2
-
1.6
-
Alcohol-rich phase
42.0 (c)
315.2
-
-
-
Alcohol-rich phase
48.2 (c)
321.4
-
-
-
Alcohol-rich phase
50.0
323.2
-
7.6
-
Alcohol-rich phase
51.8 (c)
325.0
-
-
-
Alcohol-rich phase
52.9 (c)
326.1
15.0 (a)
-
0.538
Alcohol-rich phase
54.0 (c)
327.2
9.3 (a)
-
0.403
Alcohol-rich phase
54.4 (c)
327.6
-
-
-
Alcohol-rich phase
55.5 (c)
328.7
4.8 (a)
-
0.249
Alcohol-rich phase
55.6 (c)
328.8
22.3 (b)
-
0.654
Alcohol-rich phase
60.8 (c)
334.0
31.2 (b)
-
0.749
Alcohol-rich phase
62.5 (c)
335.7
-
-
-
Alcohol-rich phase
63.2 (c)
336.4
46.4 (b)
-
0.851
Alcohol-rich phase
30.0
303.2
99.7 (a)
0.3
0.999
Acetonitrile-rich phase
36.4 (c)
309.6
99.1 (a)
-
0.999
Acetonitrile-rich phase
40.0
313.2
98.4 (a)
1.6
0.998
Acetonitrile-rich phase
42.0 (c)
315.2
98.2 (a)
-
0.997
Acetonitrile-rich phase
48.2 (c)
321.4
95.3 (a)
-
0.993
Acetonitrile-rich phase
50.0
323.2
92.9 (a)
7.6
0.989
Acetonitrile-rich phase
51.8 (c)
325.0
90.0 (b)
-
0.983
Acetonitrile-rich phase
52.9 (c)
326.1
-
-
-
Acetonitrile-rich phase
54.0 (c)
327.2
-
-
-
Acetonitrile-rich phase
54.4 (c)
327.6
86.2 (b)
-
0.976
Acetonitrile-rich phase
55.5 (c)
328.7
-
-
-
Acetonitrile-rich phase
55.6 (c)
328.8
-
-
-
Acetonitrile-rich phase
60.8 (c)
334.0
-
-
-
Acetonitrile-rich phase
62.5 (c)
335.7
68.2 (b)
-
0.934
Acetonitrile-rich phase
63.2 (c)
336.4
-
-
-
Acetonitrile-rich phase
Notes:
a
Solid-liquid equilibrium.
b
Liquid-liquid equilibrium.
c
These data were extracted by the compiler from the published graphs.
Method/Apparatus/Procedure:
The solubility measurements were made with the equipment and in the manner described elsewhere.
1,2
Source and Purity of Materials:
(1) Source not specified; purity not specified.
(2) Prepared by catalytic hydrogenation of ethyl stearate; purified by vacuum distillation; freezing point = 57.98 °C.
Estimated Errors:
Solubility: Not specified.
Temperature: Not specified.
References:
1. C. W. Hoerr, E. F. Binkerd, W. O. Pool, and A. W. Ralston, J. Org. Chem. 9, 68 (1944).
2. A. W. Ralston, C. W. Hoerr, W. O. Pool, and H. J. Harwood, J. Org. Chem. 9,102 (1944).