SDS Volume
Volume 38. Hydrocarbons in Water and Seawater, Part II, p None
Source Publication
Krasnoschchekova, R. Ya.; Pakhapill, Yu. A.; Gubergrits, M. Ya.; Khim. Tverd. Topl. 1977, 11(2), 133-6.
Conditions:
Room Temp:
25
°C
Salinity:
6 g/kg sln (ref. 1)
Compilers:
Methodology:
1 L of a 0.5 g/L solution of the hydrocarbon in acetone was distributed over the inside surface of a 1-L round-bottomed flask; the acetone was evaporated with gentle heating. 0.5 L water (or salt water) was added to the dried residue, and the solution was stirred for 6 hr and allowed to settle for 16-18 hr. The upper layer (about 0.3 L) was taken for analysis. The solution was centrifuged twice at 7000 g to remove suspended particles. The hydrocarbon was extracted with benzene and concentrated by evaporation, then purified using thin-layer chromatography. Spectrometric analysis of an octane solution of the hydrocarbon was done using the quasilinear luminescence spectra.
Sample Information:
- Not given.
Measurement Errors:
Ambient temperature: ±1°C
Mass concentration (m/v) (1): ±0.008; type of error not specified.
Methodology Citation
1 Krasnoschchekova, R. Ya.; Gubergrits, M. Ya.; Neftekhimiya 1973, 13, 885-8.
System Components:
- Benzo[a]pyrene, $\ce{ C20H12 }$; [50-32-8] NIST WebBook
- Seawater, $\ce{ H2O }$; [7732-18-5(C)] NIST WebBook
Experimental Data
The solubility of benzo[a]pyrene in salt water was reported to be 0.13 µg/L.
The corresponding mass percent and mole fraction, x1, calculated by the compilers are 1.3 × 10-8 g(1)/100 g sln and 9.5 × 10-12 assuming a solution density of 1.004 kg/L.
