ARS PESTICIDE PROPERTIES last update May 1995 name:PROPYZAMIDE CASRN: 23950-58-5 molecular formula: C12H11CL2NO molecular weight : 256.13 physical state : S (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): 155 - 156 H 9ACHB2 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): STABLE 20 5,7,9 M 6ROHMH Photolysis (per day): 0.0121 SOIL M 6ROHMH 0.0170 WATER M 6ROHMH Vapor pressure (mPa): 0.058 25 H 9PME10 0.0579* M 6ROHMH Water solubility (ppm): -temp- -source- -reference- 15 25 H 9HERBH 12.9* 25 M 6ROHMH Organic solubility (ppm): 1E5 ACETONITRILE M 6ROHMH 1E5 ISOPROPANOL M 6ROHMH 1E5 XYLENE M 6ROHMH 1E5 METHANOL M 6ROHMH Henrys law (Pa m3/mol): 1.15E-3* 25 M 6ROHMH Octanol/water partitioning (log Kow): 3.3 M 6ROHMH Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference 200 EESADV 990 EESADV 840(548-1340) 6ROHMH 750* 6ROHMH Field Dissipation halflife(days): value test area pH source reference 30 H 9ACHB2 1983 ED. 21-90 H 9HERBH 10-90 P 8EPAGR 45(21-90)* 55 2 locations M 6ROHMH Halflife in soil: Soiltype aerobic anaerobic source reference 25-136 7.5 M 6ROHMH Comments: