ARS PESTICIDE PROPERTIES DATABASE last updated Jan, 2002 name: BROMOXYNIL BUTYRATE ESTER CASRN: 3861-41-4 SELECTED VALUES FOR MODELING PURPOSES (from Hornsby, et al., 1996) WATER SOLUBILITY (mg/L): 27 FIELD HALF-LIFE (days): 7 SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 1079 VAPOR PRESSURE (mm Hg): 1 x 10-4 pKa: 4.1 {1} PUBLISHED AND MANUFACTURER VALUES AND SOURCES molecular formula: C11H9Br2NO3 molecular weight : 347.01 physical state : S (L=liquid; G=gas; S=solid) reference: _________________________________________________________________________ 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): - Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): 0.016* 25 5 M 9RHPOU Photolysis (per day): 2.48* SOIL 25 M 9RHPOU Vapor pressure (mPa): 18.4 25 1.84E+01 25 M 9RHPOU Water solubility (ppm): -temp- -source- -reference- 27* 25 M 9RHPOU Organic solubility (ppm): Henrys law (Pa m3/mol): 2.38E-01 25 M 9RHPOU 0.238* 25 Octanol/water partitioning (log Kow): 3.94* 25 M 9RHPOU Acid dissociation (pKa): 4.1* (parent phenol) R ADCSAJ 111:55-120,1972 Soil sorption: soiltype temp. Kd Koc %om pH source reference LOAMY SAND 06.9 1079* 1.1 7.2 M 9RHPOU Field Dissipation halflife(days): value test area pH %om source reference 25 C 8CREAM V1:17 3.4 C 8CREAM V1:17 Halflife in soil: Soiltype aerobic anaerobic source reference Comments: ACID DISSOCIATION VALUE 4.1=PARENT