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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with Octadecanamine
Components:
(1) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
(2) Octadecanamine; C18H39N; [124-30-1]
NIST Chemistry WebBook
for detail
Original Measurements:
Ralston, A.W.; Hoerr, C.W.; Pool, W.O.; Harwood, H.J., J. Org. Chem. 9, 102-112 (1944).
Variables:
Temperature = 303 K to 349 K
Prepared By:
Valerii P. Sazonov and Nikolai V. Sazonov
Experimental Remarks:
The solubilities of acetonitrile (1) and octadecanamine (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 48.2 °C (321.4 K, compilers).
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and octadecanamine (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
-
amine-rich phase
36.0 (c)
309.2
-
-
-
amine-rich phase
40.0
313.2
-
1.9
-
amine-rich phase
41.4 (c)
314.6
-
-
-
amine-rich phase
45.2 (c)
318.4
-
-
-
amine-rich phase
47.0 (c)
320.2
-
-
-
amine-rich phase
49.0 (c)
322.2
10.8 (a)
-
0.443
amine-rich phase
49.8 (c)
323.0
17.5 (b)
-
0.582
amine-rich phase
50.0
323.2
-
10.5
-
amine-rich phase
50.6 (c)
323.8
5.0 (a)
-
0.257
amine-rich phase
52.7 (c)
325.9
-
-
-
amine-rich phase
63.0 (c)
336.2
26.2 (b)
-
0.700
amine-rich phase
66.7 (c)
339.9
-
-
-
amine-rich phase
73.0 (c)
346.2
37.9 (b)
-
0.800
amine-rich phase
73.1 (c)
346.3
-
-
-
amine-rich phase
76.1 (c)
349.3
57.1 (b)
-
0.897
amine-rich phase
30.0
303.2
99.7 (a)
0.3
0.999
acetonitrile-rich phase
36.0 (c)
309.2
98.7 (a)
-
0.998
acetonitrile-rich phase
40.0
313.2
98.1 (a)
1.9
0.997
acetonitrile-rich phase
41.4 (c)
314.6
97.3 (a)
-
0.995
acetonitrile-rich phase
45.2 (c)
318.4
95.0 (a)
-
0.992
acetonitrile-rich phase
47.0 (c)
320.2
94.1 (a)
-
0.990
acetonitrile-rich phase
49.0 (c)
322.2
-
-
-
acetonitrile-rich phase
49.8 (c)
323.0
-
-
-
acetonitrile-rich phase
50.0
323.2
90.5 (b)
10.5
0.984
acetonitrile-rich phase
50.6 (c)
323.8
-
-
-
acetonitrile-rich phase
52.7 (c)
325.9
90.0 (b)
-
0.983
acetonitrile-rich phase
63.0 (c)
336.2
-
-
-
acetonitrile-rich phase
66.7 (c)
339.9
83.2 (b)
-
0.970
acetonitrile-rich phase
73.0 (c)
346.2
-
-
-
acetonitrile-rich phase
73.1 (c)
346.3
74.4 (b)
-
0.950
acetonitrile-rich phase
76.1 (c)
349.3
57.1 (b)
-
0.897
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 previously described elsewhere.
1,2
Source and Purity of Materials:
(1) Source not specified; purity not specified; freshly distilled and cooled without access to the atmosphere, to prevent contamination with carbon dioxide.
(2) Prepared by hydrogenation of the highly purified nitrile as in work
1
; purified by two vacuum distillations; freezing point = 53.06 °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, and E. J. Hoffman, J. Am. Chem. Soc. 64, 1516 (1942).