Compilation - Toluene with Water (IUPAC SDS Volume 37)
SDS Volume (479)
Volume 37. Hydrocarbons in Water and Seawater, Part I, p 417
Original Measurements
Banerjee, S.; Yalkowsky, S. H.; Valvani, S. C.; Environ. Sci. Technol. 1980, 14, 1227-9.
Variables:
Room Temp: 25 °C
Prepared by:
Method/Apparatus/Procedure:
Experiments were performed in sealed stainless steel centrifuge tubes. An excess of $\ce{^{14}C}$ labelled toulene was added to a tube contained distilled water, and the tube was sealed and allowed to equilibrate at 25 ± 0.2 °C with constant or intermittent shaking. Equilibration was generally complete within one week. The mixture was then centrifuged at 10,000 rpm for 60 min in a head pre-equilibrated 25 ± 0.3 °C, following which aliquots of the solution were removed for analysis by liquid scintillation counting. The entire procedure was carried out at least twice, and each analysis was also conducted in duplicate.
Source and Purity of Materials:
- $\ce{^{14}C}$-labelled toluene: New England Nuclear, used without further purification.
- Distilled.
Estimated Errors:
Ambient temperature: ±0.2 K
Mass concentration (m/v) (1): ±2.3% rel. (representing one std. dev.)
Components:
- Toluene, $\ce{ C7H8 }$; [108-88-3] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
The solubility of toluene in water was reported to be 1.68 × 10-2 mol/L sln. Assuming a solution density of 1.00 kg/L the corresponding mass per cent and mole fraction (x1) solubilities, calculated by the compiler, are 0.155 g (1)/100 g sln and 3.04 × 10-4 respectively.
