Compilation - p-Xylene with Water (IUPAC SDS Volume 38)
SDS Volume (952)
Volume 38. Hydrocarbons in Water and Seawater, Part II, p None
Original Measurements
Kirchnerová, J.; Cave, G. C. B.; Can. J. Chem. 1976, 54(24), 3909-16.
Variables:
Room Temp: 25 °C
Prepared by:
Method/Apparatus/Procedure:
Approximately 50 mL of (1) was placed in the equilibration vessel. A test tube containing 6 mL of (2) was then placed in the vessel so that the rim of the test tube rested against the upper inside wall of the vessel. The vessel was then stoppered, placed inside a plastic bag, and the jacketed vessel was emersed up to its neck in a water thermostat. Trials had shown that the stoichiometric concentration of (1) in (2) became constant within two days.
The stoichiometric concentration of water was determined by a conventional Karl Fischer dead-stop back-titration.
Source and Purity of Materials:
- Fisher 277; purified by double crystallization.
- not specified.
Estimated Errors:
Ambient temperature: ±0.1°C
Mass concentration (m/v) (1): 0.0002 mol (2) dm-3 sln (standard deviation from 5 determinations).
Components:
- 1,4-Dimethylbenzene, $\ce{ C8H10 }$; [106-42-3] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
The solubility of water in p-Xylene at 25°C was reported to be 0.0217 mol(2)/L and x2 = 0.00269. The corresponding mass percent calculated by the compilers is 0.0457 g(2)/100 g sln.
Solubility of water in 7,8-dimethyltetradecane
| $T$ (°C) | MR2 (g1/100 g2) | $x_{2}$ |
|---|---|---|
| 20 | 7.7 x 10-3 | 9.67 x 10-4 |
(*) g(2)/kg, Mass %, and x1 are calculated by compilers using density and other physical data for NaCl solutions from ref 1.
