Research Article
Evaluation of Ricinus communis L. for the Phytoremediation of Polluted Soil with Organochlorine Pesticides
Table 1
Physicochemical properties of organochlorine pesticides.
| | Pesticide | Melting point (°C) | Density
(g L−1, 20°C) | Vapour pressure (mm Hg, 20°C) | Solubility in water (g mL−1) | |
| | -HCH | 159-160 | 1.87 | 4.5 × 10−5 | 10 | 3.8 | | -HCH | 309-310 | 1.89 | 3.6 × 10−7 | 5 | 3.78 | | -HCH | 112-113 | 1.85 | 4.2 × 10−5 | 7.3 | 3.61–3.72 | | Trans-chlordane | 104-105 | 1.59–1.63 | 2.9 × 10−5 | 0.056 | 5.54 | | Chlorpyrifos | 41-42 | 1.398 (43°C) | 1.87 × 10−5 | 0.7 | 4.82 | | o,p′-DDE | 88.4 | No data | 6.2 × 10−6 | 0.14 | 6 | | o,p′-DDT | 74.2 | 0.98–0.99 | 1.1 × 10−7 | 0.085 | 6.79 | | p,p′-DDT | 109 | 0.98–0.99 | 1.6 × 10−7 | 0.025 | 6.91 | | Diclofop-methyl | 39–41 | 1.30 (40°C) | 2.6 × 10−7 | 0.8 | 4.58 | | Aldrin | 104–105.5 | 1.60 (20°C) | 7.5 × 10−5 | 0.011 | 6.5 | | Dieldrin | 176-177 | 1.75 | 3.1 × 10−6 | 0.110 | 6.2 | | Endrin | 235 | No data | 2 × 10−7 | 0.2 | 5.6 | | Heptachlor | 93 | 1.65–1.67 | 4 × 10−4 | 0.056 | 6.1 | | Heptachlor epoxide | 160-161 | 1.91 | 1.95 × 10−5 | 0.0275 | 5.4 | | 4,4′-Methoxychlor | 89 | 1.4 | Negligible | 0.10 | 4.68–5.08 |
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Distribution coefficients octanol-water ().
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