SDS Volume (5139)
Volume 78. Acetonitrile Binary Systems, p None
Original Measurements
DuBrow, P. L.; Hoerr, C. W.; Harwood, H. J.; J. Am. Chem. Soc. 74, 6241-5 (1952).
Variables:
Room Temp: 273 - 323 $\pu{K}$
Prepared by:
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:
- Source not specified; reagent grade; freshly distilled.
- Prepared by the reaction of highly purified lauric acid with 2-aminobenzenethiol at elevated temperatures, using catalytic amounts of $\ce{HCl}$; purified by vacuum distillation in a Vigreux column; FP = 18.20°C.
Estimated Errors:
Ambient temperature: ±0.1.
Components:
- Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
- 2-Undecylbenzothiazole, $\ce{ C18H27NS }$; [6340-31-4] NIST WebBook
Experimental Data
Miscible above 79°C (352 K, compiler).
Solubility of 2-undecylbenzothiazole (2) in acetonitrile (1)
| $T$ (°C) | $T$ ($\pu{K}$) | MR2 (g1/100 g2) | 100w2 | $x_{2}$ |
|---|---|---|---|---|
| 0.0 | 273.2 | 0.1 | 1 x 10-3 | 1 x 10-4 |
| 10.0 | 283.2 | 2.6 | 0.026 | 4 x 10-3 |
| 20.0 | 293.2 | 7.2 | 0.067 | 0.010 |
| 30.0 | 303.2 | 10.1 | 0.092 | 0.014 |
| 40.0 | 313.2 | 14.0 | 0.123 | 0.020 |
| 50.0 | 323.2 | 19.2 | 0.161 | 0.027 |
