Naphthalene with Seawater (IUPAC SDS Volume 38)
Evaluator
David G. Shaw Institute of Marine Science, University of Alaska
Evaluation
The solubility of naphthalene (1) in seawater (2) has been reported in six works.

At 298K and a salinity of 35 g salts/kg s1n the data of Gordon and Thorne (ref 2), Eganhouse and Calder, and May et al. are in good agreement. Therefore the mean value, 2.29 x 10-3, is adopted as the recommended value at this temperature and salinity. Since the value of Schwarz is lower than would be expected with decreasing salinity, it is considered doubtful. At 298 K and a salinity of 31 g salts/kg s1n the data of Paul and of Gordon and Thorne (ref 3) are in fair agreement. Therefore their mean is adopted as a tentative value. Gordon and Thorne (ref 2) and May et al. report data for a range of salinities using the Setschenow equation. Schwarz reports data over the temperature range 281 to 303 K. However, since this data at 298 K appears low, the usefulness of this work is diminished.

Sources:

1 Paul, M. A.; J. Am. Chem. Soc. 1952, 74, 5274-7.
2 Gordon, J. E.; Thorne, R. L.; J. Phys. Chem. 1967, 71, 4390-9.
3 Gordon, J. E.; Thorne, R. L.; Geochim. Cosmochim. Acta, 1967, 31, 2433-43.
4 Eganhouse, R. P.; Calder, J. A.; Geochim. Cosmochim. Acta 1976, 40, 555-61.
5 Schwarz, F. P.; J. Chem. Eng. Data. 1977, 22, 273-7.
6 May, W. E.; Wasik, S. P.; Freeman, D. H.; Anal. Chem. 1978, 50, 997-1000