Pesticide Properties Database Pesticide Properties Database - Data Entered May 1999 Name: Lenacil CASRN: 2164-08-1 Molecular Formula: C 13 H 18 N2 02 Molecular Weight: 234.3 Physical State: S (L=Liquid, G=Gas, S=Solid) Reference: Pesticide Manual, 11th Ed. Key to sources: (M)anufacturer, (H)andbook, (R)eview, (E)xperiment (C)alculated, (U)nknown, (E)EPA data, (W)auchope * denotes a selected value where multiple values of a property are listed Boiling Point (deg C): Value Medium Temp pH Source Reference Melting Point (deg C): Value Medium Temp pH Source Reference 315.6-3 H Pest. Manual Decomposition (deg C): Value Medium Temp pH Source Reference Hydrolysis(per day): Value Medium Temp pH Source Reference Stable Water 25 5 M DuPont Stable Water 25 7 M DuPont Stable Water 25 9 M DuPont Photolysis (per day): Value Medium Temp pH Source Reference Stable Water 25 5 M DuPont Stable Water 25 7 M DuPont 0.014 Water 25 9 M DuPont Vapor Pressure (mPa): Value Medium Temp pH Source Reference 2.7E-4 25 M Dupont Water Solubility (ppm): Value Medium Temp pH Source Reference 4 Water 20 5 M DuPont 3 Water 20 7 M DuPont 3 Water 20 9 M DuPont Organic Solubility (ppm): Value Medium Temp pH Source Reference Henry's Law Constant (Pa 3/mol): Value Medium Temp pH Source Reference 1.59E-5 25 5 M DuPont 2.11 E-5 25 7 M DuPont 2.11 E-5 25 9 M DuPont Octanol/Water Partitioning(log Kow): Value Medium Temp pH Source Reference 2.31 25 M DuPont Acid Dissociation Constant (pKa): Value Medium Temp pH Source Reference 10.3 M DuPont Soil Sorption: Soil Type Temp Kd Koc %OM pH Source Reference Loamy sand 25 0.35 75 0.8 M DuPont Sandy loam 25 0.61 81 1.3 M DuPont Loam 25 2.8 254 1.9 M DuPont Field Dissipation Half-life (days): Value Test Area pH %OM Source Reference 20 Puch, Germany M DuPont 59 Pattensen, Germany M DuPont 78 Speyer, Germany M DuPont 44 Birkenmoor, Germany M DuPont 63 Aarbergen, Germany M DuPont Half-life in Soil(days): Soil Type Aerobic Anaerobic Source Reference Silt loam 82 M DuPont Sandy loam 84 M DuPont Sandy loam 150 M DuPont Comments: