ARS PESTICIDE PROPERTIES DATABASE last updated May 1995 name: NEBURON CASRN: 555-37-3 molecular formula: C12H16CL2N2O molecular weight: 275.2 physical state: S (L=liquid; G=gas; S=solid) reference: 9PMED9 __________________________________________________________________________ Key to sources: (M)Manufacturer, (R)eview, (H)andbook,(E)xperiment, (C)alculated, (U)nknown, (P)EPA data, (W)auchope * denotes a selected value where multiple values of a property are listed. __________________________________________________________________________ value medium temp. pH source reference ----- ------ ----- -- ------ --------- Boiling point (deg C): Melting point (deg C): 102 - 103 H 9PME10 Decomposition point (deg C): Heat of vaporization (deg C): --RATE CONSTANTS-- Hydrolysis (per day): 0.004 0.5N NAOH 13.7 H 6MONTG Photolysis (per day): Vapor pressure (mPa): NEGLIGIBLE RT H 6MONTG Water solubility (ppm): 4.8 24 H 9PMED9 H 9ACHB2 1983 E ADCSAJ 111: 55-120 (1972) 5 25 H 9PME10 Organic solubility (ppm): SPARINGLY SOLUBLE IN HC'S H 9PME10 Henrys law (Pa m3/mol): Octanol/water partitioning (log Kow): 3.80 H 6MONTG Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference -------- ----- -- --- --- -- --------- 2570 6GERST 2291 JPFCD2 PT.B 22: 55-69(1987) 1808 WEREAT 5: 98-107 (1965) SANDY LOAM 325 2708 2O.64 6.3 WEREAT 5: 98-107 (1965) TOLL FARM HP 240 2051 20.10 7.4 WEREAT 5: 98-107 (1965) SILTY CLAY LOAM 139 3767 6.35 6.2 WEREAT 5: 98-107 (1965) SANDY LOAM 72 3731 3.32 7.1 WEREAT 5: 98-107 (1965) SANDY CLAY LOAM 58 3295 3.03 6.7 WEREAT 5: 98-107 (1965) 3111 9EINSP pp. 23-67 (1980) 2500* W Field dissipation halflife(days): value test area pH source reference ----- --------- -- ------ --------- 95 C 8CREAM 117 C 8CREAM 240-270 E 6CALIF 15: 10-11 (1961) 38-75 E 6PNCWC 15th MEETING p. 7-8 (1958) 90-120 H 9PME10 130* Halflife in soil: soiltype aerobic anaerobic source reference -------- ------- --------- ------ --------- Comments: