Трифлуралин

Common NameTrifluralinIUPAC Nameα,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidineCAS Number1582-09-8 Structural Formula Physical and Chemical CharacteristicsM.f.: C13H16F3N3O4Mol. Wt. : 335.3Form : Yellow-orange crystals.M.p.:48.5-49 °C; (tech., 43-47.5 °C)B.p.: 96-97 °C/24 Pa V.p. : 6.1 mPa (25 °C) (EEC A4)Kow: logP = 4.83 (20 °C) (EEC A8)Henry : 15 Pa m3 mol-1 (calc.)S.g./density: 1.36 (22 °C) (EEC A3)Solubility: In water 0.184 (pH 5), 0.221 (pH 7), 0.189 (pH 9) (all in mg/l) (EEC A6); tech. 0.343 (pH 5), 0.395 (pH 7), 0.383 (pH 9) (all in mg/l) (EEC A6). In acetone, chloroform, acetonitrile, toluene, ethyl acetate >1000, methanol 33-40, hexane 50-67 (all in g/l, 25 °C).Stability: Stable at 52 °C (highest storage temperature tested). Stable to hydrolysis at pH 3, 6 and 9 (52 °C). Decomposed by u.v. irradiation (E. Leitis & D. G. Crosby, J. Agric. Food Chem., 1974, 22, 842).pKa: N/AF.p.: 151 °C (closed cup); tech. 153 °C (open cup) (both Pensky-Martens)SpecificationTrifluralin content, % ≥95.0 N-nitroso-di-n-propylamine content, mg/kg ≤ 1