ARS PESTICIDE PROPERTIES last update May 1995


name:DBCP                                      CASRN: 96-12-8

molecular formula: C3H5BR2CL
molecular weight : 236.36
physical state   : L
(L=liquid; G=gas; S=solid)
reference: 9MERCK

_________________________________________________________________________
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):
196    -                                         H      9MERCK

Melting point(deg C):
       -

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
5.0E-5                          25      7       H    6MONTG
Photolysis (per day):

Vapor pressure (mPa):
1.2E05*                         21              H    9ACHB2 1983 ED.
2.1E05                          40              H    9ACHB2 1983 ED.
1.0E5                           21              H    9MERCK

Water solubility (ppm):       -temp-       -source- -reference-
1000*                                           E    ETOCDK 8:339-357,1989
1230                                            R    EESADV
                                20              H    9FACHB

Organic solubility (ppm):

Henrys law (Pa m3/mol):
28                              20              H    9ACHB2 2983 ED.

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

Acid dissociation (pKa):


Soil sorption:
soiltype        temp.   Kd       Koc      %om   pH    reference
                                 40                   ETOCDK 8:339-357,1989
                                 130                  8AOACA
                                 129                  8SWAMD
                                                      EESADV
                                 87                   EESADV
                                 70                   JEVQAA 16:422-428,1987
                                 88*


Field Dissipation halflife(days):
value           test area        pH        source     reference
180                                           E       SCSFAD 44:1-8,1985
225                                           E       JEVQAA 16:422-428,1987
203(180-225)*


Halflife in soil:
Soiltype           aerobic      anaerobic   source    reference


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