Components:
Original Measurements
Grigsby, R. D.; 'Self-Association and Hydration of N-Methylacetamide in Carbon Tetrachloride' Ph.D. Dissertation, Univ. Oklahoma, Norman, OK, 1966.
Variables:
Ambient temperature: 298 K
Prepared by:
Method/Apparatus/Procedure:
Two methods were used for the water concentration in tetrachloromethane determination. After equilibration in a thermostated closed system, samples were withdrawn and analyzed for total water content using a coulometric Karl Fischer titrator. In the second method, the total pressure of the saturated solution was measured in a liquid-vapor equilibrium still apparatus. Full details are described in the Ph. D. thesis; see also (ref. 1).
Source and Purity of Materials:
- Distilled.
- Fischer reagent, refluxed with Hg and redistilled before use.
Estimated Errors:
Ambient temperature: ±0.1 K.
Mass concentration (m/v) (1): ±12%.
References
1 Grigsby R. D.; Christian, S. D.; Affsprung,H. R. J. Phys. Chem. 1968, 72, 2465.
Experimental Values:
| T (°C) | C1 (mol/m3) | 100w1a | x1a | Method |
|---|---|---|---|---|
| 25.0 | 9.8 | 1.8 x 10-2 | 1.53 x 10-3 | Coulometric |
| 25.0 | 8.8 | 1.6 x 10-2 | 1.36 x 10-3 | Total pressure |
