ARS PESTICIDE PROPERTIES last update May 1995 name:CHLOROXURON CASRN: 1982-47-4 molecular formula: C15H15CLN2O2 molecular weight : 290.75 physical state : S (L=liquid; G=gas; S=solid) reference: 9CIBAG _________________________________________________________________________ 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): 151 - 152 H 9ACHB2,2ND ED.,1987 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): Photolysis (per day): Vapor pressure (mPa): 2.39E-04 20 H 9PMED8 5.2E-04* 25 M 9CIBAG Water solubility (ppm): -temp- -source- -reference- 2.7 H 9HERBH 2.5* 22 M 9CIBAG 3.7 20 H 9ACHB2,2ND ED.,1987 Organic solubility (ppm): 1.1E+5* DICHLOROMETHANE 20 H 9ACHB2,2ND ED.,1987 4.4E+4* ACETONE 20 H 9ACHB2,2ND ED.,1987 3.5E+4* METHANOL 20 H 9ACHB2,2ND ED.,1987 4.0E+3* TOLUENE 20 H 9ACHB2,2ND ED.,1987 Henrys law (Pa m3/mol): 6.0E-05* 25 M 9CIBAG Octanol/water partitioning (log Kow): 3.20 25 M 9CIBAG Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference 1335 WEREAT 3:140-153,1963 1570 WEREAT 3:140-153,1963 1870 WEREAT 3:140-153,1963 3710 WEREAT 5:98-107,1965 2820 WEREAT 5:98-107,1965 4740 WEREAT 5:98-107,1965 6220 WEREAT 5:98-107,1965 3980 WEREAT 5:98-107,1965 LOAMY SAND 14 1852 1.3 7.8 9CIBAG SANDY LOAM 40 1563 4.4 7.5 9CIBAG SILT LOAM 110 1323 14.3 9CIBAG 2820* Field Dissipation halflife(days): value test area pH source reference 45(30-60)* 30 H 9ACHB2 1983 ED. 60 H 9HERBH Halflife in soil: Soiltype aerobic anaerobic source reference SILT LOAM 110* M 9CIBAG Comments: NO LONGER SOLD BY CIBA