Compilation - Benzene with Water (IUPAC SDS Volume 37)
SDS Volume (624)
Volume 37. Hydrocarbons in Water and Seawater, Part I, p 121
Original Measurements
Wing, J.; Johnston, W. H.; J. Am. Chem. Soc. 1957, 79(4), 864-5.
Variables:
Room Temp: 25 °C
Prepared by:
Method/Apparatus/Procedure:
A small amount of (2) was equilibrated with 20 mL of (1) using a Teflon stirrer in a 100 mL flask in a Sargent constant temperature bath. At the end of two hours, the mixture was poured into a test tube immersed in the bath and the organic phase separated from water by gravitation. The determination of $\ce{THO}$ in the organic phase was done by isotopic dilution with a large excess of $\ce{H2O}$. The tritium activities in the tritiated water samples were determined by the acetylene method described in [1].
Source and Purity of Materials:
- source not specified, chemical grade; redistilled in a column of 50 theoretical plates; purity not specified.
- Tracerlab, Inc., tritiated water with an activity of approximately 1 microCi/mL.
Estimated Errors:
Ambient temperature: ±0.02 K
Mass concentration (m/v) (1): 0.9% (st. dev. From 6 determinations).
References
Components:
- Benzene, $\ce{ C6H6 }$; [71-43-2] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
The solubility of water in benzene at 25°C was reported to be 0.0554 ml (2)/100 mL sln and 0.0635 mL (2)/100 g(1).
The corresponding mass percent and mole fraction, x2, calculated by the compilers are 0.114 g(2)/100 g sln and 4.9 × 10-3. The assumption that 1 dm3 sln = 874 g sln was used in the calculation.
