ARS PESTICIDE PROPERTIES DATABASE last updated Jan, 2002


name:BIFENOX                                   CASRN: 42576-02-3


SELECTED VALUES FOR MODELING PURPOSES (from Hornsby, et al., 1996)

WATER SOLUBILITY (mg/L): 0.398
FIELD HALF-LIFE (days): 7
SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 10000 E
VAPOR PRESSURE (mm Hg): 2.4 x 10-6


PUBLISHED AND MANUFACTURER VALUES AND SOURCES

molecular formula: C14H9CL2NO5
molecular weight : 342.14
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9RHPOU

_________________________________________________________________________
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):
84     -     86                                  H     9ACHB2,2ND ED.,1987

Decomposition point(deg C):
175    -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
0.00660*                         25     5        M     9RHPOU

Photolysis (per day):
0.06*                SOIL        25              M     9RHPOU

Vapor pressure (mPa):
<0.013*                          25              M     9RHPOU
3.2E-1                           30              H     9ACHB2,2ND ED.,1987


Water solubility (ppm):        -temp-        -source-  -reference-
0.398*                           25              M     9RHPOU
35E-02                           25              H     9ACHB2,2ND ED.,1987

Organic solubility (ppm):
3.8E+5*   ACETONE                25              M     9RHPOU
3.0E+0*   XYLENE                 25              M     9RHPOU
2.2E+4*   METHANOL               25              M     9RHPOU
4.0E+5*   CHLOROBENZENE          25              H     9ACHB2,2ND ED.,1987
<5.0E+4*  ETHANOL                25              H     9ACHB2,2ND ED.,1987

Henrys law (Pa m3/mol):
0.011*                           25              M     9RHPOU

Octanol/water partitioning (log Kow):
4.48*                             22             H     9PME10

Acid dissociation (pKa):



Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                7800                  EESADV, 4:28,1980
                                7800                  EESADV
SAND                    02.6    1490     0.3   7.5    9RHPOU
LOAMY SAND              079     9705     1.4   6.9    9RHPOU
SANDY CLAY LOAM         0156    2.44E+4  1.1   7.3    9RHPOU
SILT LOAM               0408    408      2.0   7.4    9RHPOU
LOAM                    036     1588     3.9   6.7    9RHPOU
                                7600*

Field Dissipation halflife(days):
value             test area      pH          source   reference
7(2-14)*
7-14                                            H     9ACHB2 1983 ED.
7-10              SOIL                          M     9RHPOU
2                 SOIL-AQU.                     M     9RHPOU

Halflife in soil:
Soiltype           aerobic      anaerobic    source   reference
SANDY LOAM          5-7*         2-7            M     9RHPOU


Comments:
SOIL SORPTION KOC=7600(408-24400)