ARS PESTICIDE PROPERTIES DATABASE last updated May 1995

name: DICHLONE                       CASRN: 117-80-6     

molecular formula: C10H4CL2O2                 
molecular weight: 227.06                      
physical state: S                      
(L=liquid; G=gas; S=solid)
reference: 9PMED9

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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):
275 AT 2 MM HG                               H      9PME10

Melting point (deg C):
193                                          H      9PME10

Decomposition point (deg C):

Heat of vaporization (deg C):

--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
0.01                                         H      7HOCHE

Water solubility (ppm): 
0.1*                            25           H      9PMED9
1.0                             25           H      6MONTG

Organic solubility (ppm):
MODERATELY SOLUBLE (CA.4E4 PPM)              H      6MONTG
IN MANY ORGANIC SOLVENTS

Henrys law (Pa m3/mol):
0.023                                        H      7HOCHE
                                             H      9PMED9

Octanol/water partitioning (log Kow):
5.62                                         H      6MONTG

Acid dissociation (pKa):
                                                          

Soil sorption:
soiltype         temp.    Kd     Koc    %om    pH   reference
--------         -----    --     ---    ---    --   ---------
                                 9500               9PMED9

Field dissipation halflife(days):
value              test area          pH    source  reference
-----              ---------          --    ------  ---------
ca.2               MOIST SOIL                P      6USEPA
ca.90              DRY SOIL                  P      6USEPA
82*                                          W

Halflife in soil:
soiltype           aerobic  anaerobic       source  reference
--------           -------  ---------       ------  ---------

Comments: