| Abstract: | Apparent water solubilities of 1,1-bis(p-chlorophenyl)-2,2,2-trichloroethane (DDT), 2,4,5,2???,5???-penta-chlorobiphenyl (PCB), and 1,2,3-trichlorobenzene (TCB) were determined at room temperature in aqueous solutions of commercial linear alkylbenzenesulfonate (LAS), oil-free (solvent-extracted) LAS, and single-molecular 4-dodecyl-benzenesulfonate. The extent of solute solubility enhancement by commercial LAS is markedly greater than that by other ionic surfactants below the measured critical micelle concentration (CMC); above the CMC, the enhancement data with LAS are comparable with other surfactants as micelles. The small amount of neutral oils in commercial LAS (1.7%), comprising linear alkylbenzenes (LABs) and bis(alkylphenyl) sulfones, contributes significantly to the enhanced solubility of DDT and PCB below the CMC; the effect is ascribed to formation of oil-surfactant emulsions. The oil-surfactant emulsion formed corresponds to ???9-10% of the commercial LAS below the CMC. The data suggest that discharge of wastewater containing a significant level of oils and surface-active agents could lead to potential mobilization of organic pollutants and LABs in aquatic environments. |
| Genre: | Article |
| ProdID: | 70016343 |
| Citation Author: | Chiou, C. T.; Kile, D. E.; Rutherford, D. W. |
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| Citation End Page: | 665 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Science and Technology |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | The neutral oil in commercial linear alkylbenzenesulfonate and its effect on organic solute solubility in water; 1991; Article; Journal; Environmental Science and Technology; Chiou, C. T.; Kile, D. E.; Rutherford, D. W. |
| Citation Start Page: | 660 |
| Citation Volume: | 25 |
| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | The neutral oil in commercial linear alkylbenzenesulfonate and its effect on organic solute solubility in water; 1991; Article; Journal; Environmental Science and Technology; Chiou, C. T.; Kile, D. E.; Rutherford, D. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
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