ARS PESTICIDE PROPERTIES last update May 1995 name:TRIFLURALIN CASRN: 1582-09-8 molecular formula: C13H16F3N3O4 molecular weight : 335.28 physical state : S (L=liquid; G=gas; S=solid) reference: 9HERBH,5,471,1983 _________________________________________________________________________ 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): 48.5 - 49 H 9HERBH,1983 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): <0.022* 25- 3-9 M 6DOWCH Photolysis (per day): 0.0105* SOIL 25 M 6DOWCH 1.8* WATER 25 M 6DOWCH Vapor pressure (mPa): 14.6* 25 H 9HERBH 6.7 20 R 9HRLCP 29.2 29 E ADCSAJ 86:48,1969 32.2 30 E JAFCAU 31(2):213,1983 14.3 25 E JAFCAU 32(3):640,1984 Water solubility (ppm): -temp- -source- -reference- 0.6 E EESADV 0.2 M 8HOECH <1 27 H 9ACHB2 1983 ED. 1 E ETOCDK 8:339-357,1989 0.32* 25 E RREVAH 85:24,1983 0.70 25 E RREVAH 85:24,1983 0.75 25 E JPFCD2,B19(3):302,1984 Organic solubility (ppm): 4E05* ACETONE 27C H 9PMED8 4E05* ACETONE 27 M 6DOWCH 5.8E+5* XYLENE 27 H 9PMED8 Henrys law (Pa m3/mol): 1.53* M 6DOWCH Octanol/water partitioning (log Kow): 5.33 E ESTHAG, 22(3):273,1988 5.28 E JEVQAA, 10(3):384,1981 4.19 E JPFCD2, B19(3):303,1984 3.97 20 E JARJA9, 17(3):176,1983 5.07* 20 Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH source reference 7300 E JEFQAA 16:422-428,1987 4600 E JAFCAU 29:1050-1059,1981 2500 E JAFCAU 29:1050-1059,1981 13700 R EESADV 5800 R EESADV 3900 R 8AOACA 1200 C 8GLEAM 7950 E ETOCDK 8:339-357,1989 7000 8740 M 8HOECH 9850 R 8INSFO 7200* SAND 25 18.6 6400 0.5 7.7 SANDY LOAM 25 54.8 6800 1.4 5.7 LOAM 25 88.3 8500 1.8 6.5 CLAY LOAM 25 155.6 13600 2.0 6.9 Field Dissipation halflife(days): value test area pH %OM source reference 60 C 8GLEAM 60-90 H 9ACHB2 1983 ED. 132 E JEVQAA 16:533-538,1987 83 E ETOCDK 8:339-357,1989 70 R 8INSFO 81(15-132)* 15-29 IL 35-86 GA 149 CA Halflife in soil: Soiltype aerobic anaerobic source reference 169* SANDY LOAM 189 M 6DOWCH LOAM 116 M 6DOWCH CLAY LOAM 201 M 6DOWCH Comments: SOIL SORPTION KOC VALUE=7200(1200-13700);AEROBIC 169=116-189