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Halogenated Aromatics
Table 1 presents common physical/chemical properties of the profiled halogenated aromatics. While chlorobenzene is expected to be moderately to highly mobile in the subsurface, the other three are not. Chlorobenzene is not expected to bioaccumulate, but bioaccumulation is expected of the other three. All of the halogenated aromatics are subject to anaerobic biodegradation, but this degradation will be slow for 1,2-dichlorobenzene and 1,3-dichlorobenzene and likely will yield benzene as a final product. All of the halogenated aromatics can be degraded in an aerobic environment (Cohen and Mercer 1993).
For references and temperatures see individual chemical profiles
Common Physical/Chemical Properties of Selected Halogenated Aromatics | ||||||
|---|---|---|---|---|---|---|
| Chemical | Specific Gravity (g/cc) | Solubility (mg/L) | Vapor Pressure (mmHg) | Henry's Constant (atm-m3/mol) | Log Koc | Log Kow |
| Chlorobenzene | 1.11 | 500 | 8.8 | 3.58 e-03 | 2.52 | 2.84 |
| 1,2-Dichlorobenzene | 1.31 | 151 | 1.36 | 1.92 e-03 | 2.51 | 3.43 |
| 1,3-Dichlorobenzene | 1.29 | 125 | 2.15 | 2.8 e-03 | 2.47 | 3.53 |
| 1,2,4-Trichlorobenzene | 1.45 | 31.3 | 0.46 | 1.42 e-03 | 3.1 | 4.02 |
More information can be found in Table A-1
of Cohen and Mercer 1993.
For Further Information
DNAPL Site Evaluation 
Cohen, R. and J. Mercer. EPA 600-R-93-022, 369 pp, 1993
Proceed to "Halogenated monaromatics > Chlorobenzene"
Return to "Halogenated alkenes Introduction"
