Isopropyl-PCBs

Extraction procedures for persistent organic pollutants like PCB and DDT residues can be applied with success for Chloralkylene components. Hexane-acetone or similar solvent mixtures are adequate [62]. Sulfuric acid treatment in cleanup leaves the isopropyl-PCBs unaffected. However, oxidation, e.g., with chromic acid degrades the alkyl-PCBs [62]. 

The log Kow values of Chloralkylene-12 components determined by reversed phase thin layer chromatography ranged from 4.56 to 9.53 with increasing chlorine and alkyl substitution degree [68]. Accordingly, isopropyl-PCBs could have a high bioconcentration potential. However, the first accumulation and excretion study of Chloralkylene-9-14C showed rapid metabolism in rats [69]. 

In the first experiment the contaminated extracts were obtained and then they were thermally treated by plasma. The analytical results showed that the best solvents for extraction of oil - PCB s were isooctane, cyclohexane, isopropyl alcohol and their mixture. We have found the average extraction efficiency 95%. The best result 96.2% of the extraction efficiency we obtained for the mixture of isooctane and isopropyl alcohol in the ratio 1 1. 

Isocyanatopropane, see Atrazine Isofenphos oxon, see Isofenphos Isoheptane, see PCB-1242 Isohexane, see PCB-1242 Isononane, see PCB-1242 Isononanes, see Octane Isooctane, see PCB-1242 Isooctanes, see Octane Isophthalic acid, see ro-Xylene Isopropoxyphenol, see ProDoxnr Isopropyl alcohol, see Isopropyl acetate Isopropylatnide, see Bentazone IV-Isopropylaniline, see Propachlor Isopropylbenzene, see Propylbenzene, PCB-1242,... 

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