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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with Methyl hexadecanoate
Components:
(1) Methyl hexadecanoate; C17H34O2; [112-39-0]
NIST Chemistry WebBook
for detail
(2) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
Original Measurements:
Sedgwick, R.S.; Hoerr, C.W.; Harwood, H.J., J. Org. Chem. 17, 327 (1952).
Variables:
Temperature = 273 K to 304 K
Prepared By:
Valerii P. Sazonov
Experimental Remarks:
The solubilities of acetonitrile (1) and methyl hexadecanoate (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 23.3 °C (296.5 K, compiler). The upper critical solution temperature was reported to be 31.0 °C (304.2 K, compiler).
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and methyl hexadecanoate (2)
t/°C
T/K
10
2
* Mass Fraction w
1
g
2
/100 g solution
Mole Fraction x
1
(compiler)
Comment(s)
0.0
273.2
-
<0.1
-
Ester-rich phase
10.0
283.2
-
0.9
-
Ester-rich phase
10.2 (c)
283.4
-
-
-
Ester-rich phase
15.0 (c)
288.2
-
-
-
Ester-rich phase
19.9 (c)
293.1
-
-
-
Ester-rich phase
20.0
293.2
-
7.1
-
Ester-rich phase
22.1 (c)
295.3
-
-
-
Ester-rich phase
23.5 (c)
296.7
29.8 (b)
-
0.737
Ester-rich phase
24.2 (c)
297.4
17.3 (a)
-
0.580
Ester-rich phase
25.3 (c)
298.5
8.4 (a)
-
0.377
Ester-rich phase
25.8 (c)
299.0
-
-
-
Ester-rich phase
27.4 (c)
299.6
34.0 (b)
-
0.772
Ester-rich phase
29.0 (c)
302.2
-
-
-
Ester-rich phase
30.0
303.2
-
42.5
-
Ester-rich phase
30.7 (c)
303.9
45.2 (b)
-
0.845
Ester-rich phase
0.0
273.2
> 99.9 (a)
<0.1
0.999
Acetonitrile-rich phase
10.0
283.2
99.1 (a)
0.9
0.998
Acetonitrile-rich phase
10.2 (c)
283.4
99.0 (a)
-
0.998
Acetonitrile-rich phase
15.0 (c)
288.2
97.6 (a)
-
0.996
Acetonitrile-rich phase
19.9 (c)
293.1
94.5 (a)
-
0.991
Acetonitrile-rich phase
20.0
293.2
93.4 (a)
7.1
0.989
Acetonitrile-rich phase
22.1 (c)
295.3
90.0 (a)
-
0.983
Acetonitrile-rich phase
23.5 (c)
296.7
-
-
-
Acetonitrile-rich phase
24.2 (c)
297.4
-
-
-
Acetonitrile-rich phase
25.3 (c)
298.5
-
-
-
Acetonitrile-rich phase
25.8 (c)
299.0
83.1 (b)
-
0.970
Acetonitrile-rich phase
27.4 (c)
299.6
-
-
-
Acetonitrile-rich phase
29.0 (c)
302.2
76.7 (b)
-
0.956
Acetonitrile-rich phase
30.0
303.2
70.2 (b)
42.5
0.940
Acetonitrile-rich phase
30.7 (c)
303.9
62.0 (b)
-
0.915
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 synthetic method was used. The solubilities were determined by observing visually the temperature at which crystals appear upon cooling and dissolve upon heating solutions containing known concentrations of solutes. The procedure and equipment were described elsewhere.
1
Source and Purity of Materials:
(1) Source not specified; best grade; freshly distilled.
(2) Prepared by direct esterification of highly purified fatty acid with the appropriate alcohol; fractionated under a vacuum in a Stedman-packed column; freezing point = 28.90 °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).