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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with 2-Undecylbenzothiazole
Components:
(1) 2-Undecylbenzothiazole; C18H27NS; []
NIST Chemistry WebBook
for detail
(2) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
Original Measurements:
DuBrow, P.L.; Hoerr, C.W.; Harwood, H.J., J. Am. Chem. Soc. 74, 6241-5 (1952).
Variables:
Temperature = 273 K to 323 K
Prepared By:
Valerii P. Sazonov
Experimental Remarks:
Miscible above 79 °C (352 K, compiler).
Experimental Data:
(Notes on the Nomenclature)
Solubility of 2-undecylbenzothiazole (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
0.0001
10.0
283.2
2.6
2.6
0.004
20.0
293.2
7.2
6.7
0.010
30.0
303.2
10.1
9.2
0.014
40.0
313.2
14.0
12.3
0.020
50.0
323.2
19.2
16.1
0.027
Method/Apparatus/Procedure:
The synthetic method was used. The solubilities were determined by observing visually the temperatures at which known concentrations precipitated upon cooling and dissolved upon heating.
Source and Purity of Materials:
(1) Source not specified; reagent grade; freshly distilled.
(2) Prepared by the reaction of highly purified lauric acid with 2-aminobenzenethiol at elevated temperatures, using catalytic amounts of HCl; purified by vacuum distillation in a Vigreux column; freezing point=18.20 °C.
Estimated Errors:
Temperature: ± 0.1.