Compilation - Dibromomethane with Water (IUPAC SDS Volume 60)
SDS Volume (2432)
Volume 60. Halogenated Methanes with Water, p None
Original Measurements
Wright, D. A.; Sandler, S. I.; DeVoll, D.; Environ. Sci. Technol. 1992, 26, 1828-31.
Variables:
Room Temp: 293 - 323 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
A differential static cell equilibrium apparatus was used to measure the infinite dilution activity coefficient for dibromomethane ($\gamma^{\infty}$) in water. Degassed water cells were submerged in a thermostated water bath. Dibromomethane was injected into a mixture cell, a magnetic stirrer was turned on, and the cells were allowed to equilibrate. The stirrer was then turned off and the differential pressure was recorded. The experiment was repeated at least three times at each temperature.
Source and Purity of Materials:
- Source and purity not given.
- Distilled, filtered and deionized.
Estimated Errors:
Ambient temperature: ±0.05 K.
Mass concentration (m/v) (1): See above.
Components:
- Dibromomethane, $\ce{ CH2Br2 }$; [74-95-3] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ (°C) | $x_{1}$ | γ1∞ | 100w1 |
|---|---|---|---|
| 20 | 1.15 x 10-3 | 869 | 1.10 |
| 35 | 1.25 x 10-3 | 801 | 1.19 |
| 50 | 1.35 x 10-3 | 7.4E+2 | 1.29 |
