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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with Octadecanenitrile
Components:
(1) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
(2) Octadecanenitrile; C18H35N; [638-65-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Hoerr, C.W.; Binkerd, E.F.; Pool, W.O.; Ralston, A.W., J. Org. Chem. 9, 68-80 (1944).
Variables:
Temperature = 273 K to 309 K
Prepared By:
Valerii P. Sazonov and Nikolai V. Sazonov
Experimental Remarks:
The solubilities of octadecanenitrile (2) in acetonitrile (1) in mass percent over the indicated temperature range were reported in graphical form and in a table.
Experimental Data:
(Notes on the Nomenclature)
Solubility of octadecanenitrile (2) in acetonitrile (1)
t/°C
T/K
g
2
/100 g solution
10
2
* Mass Fraction w
2
(compiler)
Mole Fraction x
2
(compiler)
0.0
273.2
≈ 0.1
0.1
0.0002
10.0
283.2
0.5
0.5
0.0008
15.0*
288.2
-
0.9
0.001
20.0
293.2
3.6
3.5
0.006
21.4*
294.6
-
4.1
0.007
25.5*
298.7
-
10.0
0.017
26.8*
300.0
-
12.7
0.022
28.2*
301.4
-
20.0
0.037
29.5*
302.7
-
41.8
0.100
30.0
303.2
115
53.5
0.151
30.5*
303.7
-
58.2
0.177
31.8*
305.0
-
72.7
0.292
35.7*
308.9
-
89.1
0.558
Notes:
*
The compiler extracted these data from the published graphs
Method/Apparatus/Procedure:
The synthetic method was used. Solution temperatures were determined by cooling 3 to 5 g portions of solution in 1 cm × 15 cm test tubes, which were placed in an air-bath. The latter was immersed in an acetone-bath, which was cooled with solid carbon dioxide. Temperature within the samples was measured by means of a potentiometer with an iron-constantan thermocouple. As the nitriles crystallized from solution upon cooling, the temperature of the air-bath was raised gradually until the mixtures redissolved.
Source and Purity of Materials:
(1) Source not specified; best grade reagent; dried and twice distilled.
(2) Prepared by passing octadecanoic acid over aluminium oxide in the presence of ammonia at 673 K; purified by several crystallization; freezing point = 40.88 °C.
Estimated Errors:
Temperature: ± 0.2 K and ± 0.4 K (below 248 K).