ARS PESTICIDE PROPERTIES last update May 1995 name:FENAMIPHOS CASRN: 22224-92-6 molecular formula: C13H22NO3PS molecular weight : 303.4 physical state : S (L=liquid; G=gas; S=solid) reference: 9MILES _________________________________________________________________________ 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): 49 - H 9PMED8,8TH ED.,p.367,1987 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): 0.0028* 25 5 M 6MILES 0.0023* 25 7 M 6MILES 0.0029* 25 9 M 6MILES Photolysis (per day): 10.4* SOIL 28 M 6MILES 4.6* WATER 28 M 6MILES Vapor pressure (mPa): 6.27* 20 M 6MILES Water solubility (ppm): -temp- -source- -reference- 329 20 E JPFCD2,VB18(2):224,1983 700 20 H 9ACHB2,2ND ED.,1987 330* 20 M 6MILES 560 20 M 6MILES 306 10 E JPFCD2,VB20(6):627,1985 419 30 E JPFCD2,VB20(6):627,1985 400 C 8GLEAM Organic solubility (ppm): >1.0E+4* 2-PROPANOL 20 H 6MILES >1.0E+4* DICHLOROMETHANE 20 H 6MILES >1.0E+4* TOLUENE 20 H 6MILES Henrys law (Pa m3/mol): 5.8E-03* 20 M 6MILES Octanol/water partitioning (log Kow): 3.25* 20 M 6MILES Acid dissociation (pKa): 10.5* 25 R RREVAH, 53:82,1974 Soil sorption: soiltype temp. Kd Koc %om pH reference 148 JPFCD2,VB20(1):10,1985 117 EESADV, 4:33,1980 171 JEFQAA 16:422-428,1987 110 JAFCAU 29:1050-1059,1981 119 JAFCAU 29:1050-1059,1981 330 8GLEAM 371 9JCOHY 1:211-225,1986 90 9JCOHY 1:211-225,1986 103 9JCOHY 1:211-225,1986 SAND 25 2.86 543** 1.0 4.3 6MILES SANDY LOAM 25 0.96 166** 1.1 6.6 6MILES SILT LOAM 25 3.46 227** 2.9 5.9 6MILES CLAY LOAM 25 1.98 171** 2.2 6.4 6MILES 197* Field Dissipation halflife(days): value test area pH %OM source reference 21 C 8GLEAM 2 SULFOXIDE E 9JCOHY 1:211-225,1986 8 SULFOXIDE E 9JCOHY 1:211-225,1986 3 R 8INSFO 30 H 9ACHB2 10 E JEVQAA 16:422-428,1987 16.2 CA(CHUALAR) M 6MILES 17 CA(FRESNO) M 6MILES 13(2-21)* Halflife in soil: Soiltype aerobic anaerobic source reference SANDY LOAM 22 M 6MILES SANDY LOAM 19* 87.9 M 6MILES Comments: SOIL SORPTION KOC VALUES WITH A DOUBLE ASTERISK WERE CALCULATED USING A CONVERSION FACTOR OF 1.9(%OM=1.9%OC) RATHER THAN 1.72. SELECTED SOIL SORPTION KOC VALUE=197(90-543)