ARS PESTICIDE PROPERTIES DATABASE last updated Jan, 2002


name: BIFENTHRIN                                CASRN: 82657-04-3


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

WATER SOLUBILITY (mg/L): 0.1
FIELD HALF-LIFE (days): 26
SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 240000
VAPOR PRESSURE (mm Hg): 1.8 x 10-7


PUBLISHED AND MANUFACTURER VALUES AND SOURCES

molecular formula: C23H22CLF3O2
molecular weight : 422.88
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):
       -

Melting point(deg C):
68     -   70.6                                   H      9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE*                          25     5,7,9    M     9FMCC3

Photolysis (per day):
STABLE*              SOIL        25              M     9FMCC3
0.0033*              WATER       25              M     9FMCC3

Vapor pressure (mPa):
0.024*                           25              H     9ACHB2
0.024                            25              M     9FMCC3


Water solubility (ppm):        -temp-       -source-   -reference-
<1E-4*                           25              M     9FMCC3
0.1                                              H     9ACHB2

Organic solubility (ppm):

Henrys law (Pa m3/mol):
>101.5*                          25              M     9FMCC3

Octanol/water partitioning (log Kow):
6.0*                                             M     9FMCC3

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.   Kd    Koc     %om   pH  source  reference
SANDY LOAM            4160  2.39E5              M     9FMCC3
SILT LOAM             5429  3.02E5              M     9FMCC3
CLAY LOAM             3688  2.75E5              M     9FMCC3
SAND                  992   1.31E5              M     9FMCC3
                            2.37E5*

Field Dissipation halflife(days):
value           test area        pH   %OM     source  reference
26(7-62)*
7-62 AVG.26                                     M     9FMCC3

Halflife in soil:
Soiltype           aerobic      anaerobic     source  reference
                   95*                          M     9FMCC3
                   65-125

Comments:
AEROBIC = 95(65-125)



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

WATER SOLUBILITY (mg/L): 0.1
FIELD HALF-LIFE (days): 26
SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 240000
VAPOR PRESSURE (mm Hg): 1.8 x 10-7


PUBLISHED AND MANUFACTURER VALUES AND SOURCES