ARS PESTICIDE PROPERTIES DATABASE last updated May 1995 name: CAPTAFOL CASRN: 2425-06-1 molecular formula: C10H9CL4NO2S molecular weight: 349.1 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): 160 - 161 H 9PME10 Decomposition point (deg C): 161 H 9PME10 Heat of vaporization (deg C): --RATE CONSTANTS-- Hydrolysis (per day): Photolysis (per day): Vapor pressure (mPa): ~1.33E-3 W Water solubility (ppm): 1.4 20 H 9PME10 H 9FACHB 1992 H 9ACHB2 1983 Organic solubility (ppm): 1.3E4 ISOPROPANOL 2.5E4 BENZENE 1.7E4 TOLUENE 1.0E5 XYLENE 4.3E4 ACETONE 4.4E4 ME ET KETONE 1.7E5 DI ME SULFOXIDE Henrys law (Pa m3/mol): ~0.33 20 H 9PME10, W Octanol/water partitioning (log Kow): Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference -------- ----- -- --- --- -- --------- 2080 JAFCAU 29: 1050-1059(1981) 78 6USEPA 490 6USEPA 315 6USEPA 877 6USEPA 2140 PSSCBG 11: 401-408 (1980) 2500 6RENCT 123: 1-164 (1992) 2000* Field dissipation halflife(days): value test area pH source reference ----- --------- -- ------ --------- 11 R 6RENCT 99: 83-117 (1987) <3,5,8 P 6EPAPF vol. I 7* Halflife in soil: soiltype aerobic anaerobic source reference -------- ------- --------- ------ --------- Comments: