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Physical Properties
Molecular weight:355.7; Physical form:Orange-yellow solid. Composition:Tech. grade is 97% pure. Melting point:42-43 °C; Vapour pressure:4 mPa at 20 °C; 3.3 mPa at 30 °C; 13 mPa at 40 °C; 53 mPa at 50 °C; Solubility:In water <1 mg/l (20 °C). In acetone, benzene, chloroform, diethyl ether, ethyl acetate >1000, cyclohexane 251, ethanol 177, olive oil c. 260 (all in g/ kg, 20 °C).; Stability:Decomposed by u.v. light. Stable for at least 2 years when stored in original unopened container at normal room temperatures.;
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Toxicology
Oral:Acute oral LD50 for rats 1550, rabbits 8000, mice 730, dogs 6400 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits >10 000 mg/kg. Mild skin and eye irritant. Inhalation: LC50 (4 h) for rats 8.4 mg/l. Phytotoxicity:Beet, sorghum, spinach and oats are sensitive. ADI:0.04 mg/ kg b.w. (Bayer, proposed).
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Environmental Profile
Ecotoxicology:
Bees:Not toxic to bees.Birds:Acute oral LD50 for mallard ducks 13 000, bobwhite quail 7000 mg/ kg.Fish: LC50 (96 h) for bluegill sunfish 0.016, rainbow trout 0.012 mg/l.
Environmental fate:
Soil:In soil, strongly adsorbed by clay colloids and organic matter, with no leaching. Dealkylation occurs to N-(2-chloroethyl)-, N-propyl-, and unsubstituted trifluoro-2,6-dinitro-p-toluidine and to cyclised products. In light, therPlant:In plants, rapidly metabolised, with some metabolites being incorporated into plant structures.
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Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)