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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Naphthalene with Seawater
Components:
(1) Naphthalene; C10H8; [91-20-3]
NIST Chemistry WebBook
for detail
(2) Seawater; ; []
NIST Chemistry WebBook
for detail
Evaluator:
D.G. Shaw, Institute of Marine Science, University of Alaska, Fairbanks, Alaska USA. December 1982.
Critical 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.
Experimental Data:
(Notes on the Nomenclature)
Table 1. Solubility of Naphthalene (1) in Seawater (2)
Author
T/K
Reference
Sol. Power
Solubility
Salinity
Method
Paul
298
1
3
2.53 g(1)/100 g sln
30.59 g salts/kg sln
uv spectral
Gordon and Thorne
298
2
3
2.36 g(1)/100 g sln
35.0 g salts/kg sln
uv spectral
Gordon and Thorne
298
3
3
2.47 g(1)/100 g sln
31.7 g salts/kg sln
uv spectral
Eganhouse and Calder
298
4
3
2.20 g(1)/100 g sln
35 g salts/kg sln
GLC
Schwarz
298
5
3
2.17 g(1)/100 g sln
30 g salts/kg sln
uv spectral
May
et al.
298
6
3
2.29 g(1)/100 g sln
35.0 g salts/kg sln
HPLC
Table 2. Solubility of Naphthalene (1) in Seawater (2) Recommended ( r ) and Tentative ( t ) Values
T/K
Sol. Power
Solubility
Salinity
298
3
2.29 g(1)/100 g sln
35 ( r ) g salts/kg sln
298
3
2.5 g(1)/100 g sln
31 ( t ) g salts/kg sln
References: (Click a link to see its experimental data associated with the reference)
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.