ARS PESTICIDE PROPERTIES DATABASE last updated May 1995 name: FENOPROP CASRN: 93-72-1 molecular formula: C9H7CL3O3 molecular weight: 269.5 physical state: S (L=liquid; G=gas; S=solid) reference: 9PMED7 __________________________________________________________________________ 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): 179 - 181 H 9PMED8 Decomposition point (deg C): Heat of vaporization (deg C): --RATE CONSTANTS-- Hydrolysis (per day): Photolysis (per day): Vapor pressure (mPa): <0.1 W Water solubility (ppm): 140* 25 H 9PMED7 176 H 9ACHB2 1983 Organic solubility (ppm): Henrys law (Pa m3/mol): <1.93E-4 25 H 9PMED7, W Octanol/water partitioning (log Kow): Acid dissociation (pKa): 2.84 H 9PMED7 Soil sorption: soiltype temp. Kd Koc %om pH reference -------- ----- -- --- -- -- --------- 2600 8SWAMD 9AQTOX pp.78-115 (1980) Field dissipation halflife(days): value test area pH source reference ----- --------- -- ------ --------- 14,15,21** E WEESA6 21: 556-560 (1973) 12 C 8CREAM 21* W Halflife in soil: soiltype aerobic anaerobic source reference -------- ------- --------- ------ --------- Comments: FENOPROP = 2,4,5-TP = SILVEX **FIELD DISS. HALFLIFE VAUES FOR DIETHANOLAMINE SALT