ARS PESTICIDE PROPERTIES last update May 1995 name:DCNA(DICLORAN) CASRN: 99-30-9 molecular formula: C6H4CL2N2O2 molecular weight : 207.06 physical state : S (L=liquid; G=gas; S=solid) reference: 7HCHPH _________________________________________________________________________ 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): 191 - H 7HCHPH Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): STABLE* Photolysis (per day): 0.3 SOIL M 6NORAM 1.7 WATER M 6NORAM Vapor pressure (mPa): 0.17* 20 H 9ACHB2 1983 ED. Water solubility (ppm): -temp- -source- -reference- 7* H 9ACHB2 Organic solubility (ppm): 3.4E+4* ACETONE H 9PMED8 4.6E+3* BENZENE H 9PMED8 1.2E+4* CHLOROFORM H 9PMED8 6* CYCLOHEXANE H 9PMED8 4E+4* DIOXANE H 9PMED8 Henrys law (Pa m3/mol): 0.00503* H 9ACHB2 Octanol/water partitioning (log Kow): 2.8 M 6NORAM Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH source reference 412 E CMSHAF 10:833-845,1981 ca5000 H 9HERBH 760 H 9PMED8 1062 H 9PMED8 SAND 760 M 6NORAM LOAMY SAND 660 M 6NORAM LOAMY SAND 730 M 6NORAM SANDY LOAM 1100 M 6NORAM 1000* Field Dissipation halflife(days): value test area pH %OM source reference 60(39-78)* 39 FL M 6NORAM 78 CA M 6NORAM Halflife in soil: Soiltype aerobic anaerobic source reference SAND 180* 30* M 6NORAM SANDY LOAM 360* M 6NORAM Comments: SOIL SORPTION KOC VALUE 1000(412-1062)