ARS PESTICIDE PROPERTIES last update May 1995 name:CHLOROTHALONIL CASRN: 1897-45-6 molecular formula: C8CL4N2 molecular weight : 265.92 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): >350 - M 6ISKBI Melting point(deg C): 250 - 251 H 9ACHB2 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): STABLE* 5-9 M 6ISKBI 0.018 9 M 6ISKBI Photolysis (per day): STABLE* SOIL M 6ISKBI 0.011 WATER M 6ISKBI Vapor pressure (mPa): <1.3E03 40 H 9ACHB2 1983 ED. 7.8E-02 25 H 9ACHB2 1983 ED. 0.076* 25 M 6ISKBI Water solubility (ppm): -temp- -source- -reference- 0.6* 25 H 9ACHB2 1983 ED. 0.6-1.2 25 M 6ISKBI 0.9 25 H 9PME10 Organic solubility (ppm): 2E04* ACETONE 25 H 9PMED8 2E04* BUTANONE 25 H 9PMED8 3E04* CYCLOHEXANONE 25 H 9PMED8 3E04* DIMETHYL FORMAMIDE 25 H 9PMED8 2E04* DIMETHYL SULFOXIDE 25 H 9PMED8 <1E04* KEROSENE 25 H 9PMED8 8E04* XYLENE 25 H 9PMED8 Henrys law (Pa m3/mol): 0.022 25 M 6ISKBI Octanol/water partitioning (log Kow): 2.88 M 6ISKBI Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH source reference 4000 C 8GLEAM 4800 R EESADV SAND 5.6 1600 0.6 M 6ISKBI SND LM 24.2 1300 3.2 M 6ISKBI SLT CLY LM 61.4 3300 3.2 M 6ISKBI SLT 57.0 14000 0.7 M 6ISKBI 5000* M 6ISKBI Field Dissipation halflife(days): value test area pH %OM source reference 48(2-90)* 14-21 H 9ACHB2 1983 ED. 45 R 8EETNS 70 E JEVQAA 16:422-428,198 68 E ETOCDK 8:339-357,1989 4-40 P 8EPAHO 30-90 P 8EPAHO 25-56 P 8EPAHO Halflife in soil: Soiltype aerobic anaerobic source reference Comments: