ARS PESTICIDE PROPERTIES last update May 1995 name:TRIBENURON ME CASRN: 101200-48-0 molecular formula: C15H17N5O6S molecular weight : 395.39 physical state : S (L=liquid; G=gas; S=solid) reference: 9DUPON _________________________________________________________________________ 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): 141 - M 9DUPON Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS- -Hydrolysis (per day): >50 25 5 M 9DUPON,1999 0.053 * 25 7 M 9DUPON 0.0031 * 25 9 M 9DUPON Photolysis (per day): 0.114 SOIL 25 7.5 M 9DUPON,1999 STABLE * WATER 25 5,7,9 M 9DUPON,1999 Vapor pressure (mPa): 5.3E-05 M 9DUPON Water solubility (ppm): -temp- -source- -reference- 48 * M 9DUPON 2040 * M 9DUPON 18,000 * M 9DUPON Organic solubility (ppm): 55 ACETONE 20 M 9DUPON 69 ACETONITRILE 20 M 9DUPON 1.96 CARBON TETRACHLORIED20 M 9DUPON 19 ETHYL ACETATE 20 M 9DUPON 4.25E-2 n-HEXANE 20 M 9DUPON 4.29 METHANOL 20 M 9DUPON Henrys law (Pa m3/mol): 4.28E-7 25 5 M 9DUPON 1.01E-8 25 7 M 9DUPON 1.12E-9 25 9 M 9DUPON Octanol/water partitioning (log Kow): -0.44 25 7 M 9DUPON 1.17 25 5 M 9DUPON -2.52 25 9 M 9DUPON Acid dissociation (pKa): 5.0 * M 9DUPON Soil sorption: soiltype temp. Kd Koc %om pH reference SANDY LOAM(DE) 25 0.19 30 1.1 6.6 9DUPON SANDY LOAM(NC) 25 0.45 37 2.1 6.5 9DUPON SILT LOAM(IL) 25 2.0 80 4.3 5.4 9DUPON SILT LOAM(DE) 25 1.7 62 4.7 4.3 9DUPON 52* 9DUPON Field Dissipation halflife(days): value test area pH %om source reference 11 MANITOBA 7.9 6.6 M 9DUPON,1999 2 NEWARK(DE) 5.1 2.1 M 9DUPON 5 ROCHELLE(IL) 7.1 5.0 M 9DUPON 9 KIMBERLY(ID) 8.3 1.7 M 9DUPON 23 MADERA(CA) 7.3 1.6 M 9DUPON 5 ALBERTA 6.2 9.2 M 9DUPON 4 SASK. 6.4 3.5 M 9DUPON 2 SASK. 6.5 2.9 M 9DUPON Halflife in soil: Soiltype aerobic anaerobic source reference SILT LOAM(DE) 1 M 9DUPON SNDY LOAM(DE) 2.2 M 9DUPON SILT LOAM(IL) 1.1 M 9DUPON SILT LOAM(ND) 16 M 9DUPON CANADA 4 M 9DUPON CANADA 6.6 M 9DUPON FRANCE 6.4 M 9DUPON CANADA 10 M 9DUPON SILT LOAM(ND) 4 M 9DUPON DENMARK 6.5 M 9DUPON FRANCE 6.3 M 9DUPON IDAHO 8.4 M 9DUPON PA 2.5 M 9DUPON FL 11 M 9DUPON NETHERLANDS 19.2 M 9DUPON NETHERLANDS 29.7 M 9DUPON Comments: SOIL SORPTION KOC VALUE=52(30-80); WATER SOLUBILITY VALUE 48=PH5,2040=PH7,18,000=PH9; OCTANOL WATER 0.44=PH7;AEROBIC VALUE=2, 25 DEGREES C., pH4.3, 4.7%om;VALUE=12, 25 DEGREES C., pH7.5, 5.4%OM.