ARS PESTICIDE PROPERTIES last update May 1995 name:PIRIMIPHOS-ETHYL CASRN: 29232-93-7 molecular formula: C11H20N3O3PS molecular weight : 305.34 physical state : L (L=liquid; G=gas; S=solid) reference: 9ACHB2 _________________________________________________________________________ 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): 15 - H 9ACHB2 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): Photolysis (per day): Vapor pressure (mPa): 15 30 H 9ACHB2 2* 20 M 8ICIAG Water solubility (ppm): -temp- -source- -reference- 9(PH7.3) 20 M 8ICIAG ca.5 H 9ACHB2 1983 ED. Organic solubility (ppm): MISCIBLE ORGANIC SOLVS.* H 9PMED8 Henrys law (Pa m3/mol): 0.068* 20 M 8ICIAG Octanol/water partitioning (log Kow): 4.2* 20 M 8ICIAG 03/01/90 Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference 23402* CMSHAF 10:833-845,1981 Field Dissipation halflife(days): value test area pH %OM source reference 60 H 9ACHB2 1983 ED. 1 H 9HERBH 10 M 8ICIAG 24(1-60)* Halflife in soil: Soiltype aerobic anaerobic source reference Comments: