Components:

(1) Benzene, C₆H₆; [71-43-2] NIST WebBook
(2) Water, H₂O; [7732-18-5] NIST WebBook

Original Measurements

Banerjee, S.; Yalkowsky, S. H.; Valvani, S. C.; Environ. Sci. Technol. 1980, 14, 1227-9.

Variables:

Ambient temperature: One temperature: 25 °C

Prepared by:

G.T. Hefter

Method/Apparatus/Procedure:

Experiments were performed in sealed stainless steel centrifuge tubes. An excess of ¹⁴C-labelled benzene was added to a tube containing 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 1 week. The mixture was then centrifuged at 10,000 rpm for 60 min in a head preequilibrated to 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 for each compound, and each analysis was also conducted in duplicate.

Source and Purity of Materials:

1. ¹⁴C-labelled benzene: New England Nuclear, used without further purification.
2. distilled.

Estimated Errors:

Ambient temperature: ±0.2 K
Mass concentration (m/v) (1): ±0.7% rel. (representing one std. dev.)