ARS PESTICIDE PROPERTIES last update May 1995


name:FENVALERATE                               CASRN: 51630-58-1

molecular formula: C25H22CLNO3
molecular weight : 419.9
physical state   : L
(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):
       -

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE*                         25     5-9       M        9DUPON

Photolysis (per day):
0.04*                SOIL       18-27  5.8       M        9DUPON
<0.023*              WATER      25     5         M        9DUPON

Vapor pressure (mPa):
3.7E-2                          25               H        9ACHB2 1983 ED.
1.5E-3                          25                        9FACHB
2.0E-4*                         25                        9DUPON


Water solubility (ppm):       -temp-         -source-    -reference-
<1                                               H       9ACHB2 1983 ED.
0.1                                              E       8GLEAM
<0.002*                         25                       9DUPON

Organic solubility (ppm):
>1E06*    ACETONE               23               H       9PMED8
>1E06*    CHLOROFORM            23               H       9PMED8
>1E06*    CYCLOHEXANONE         23               H       9PMED8
>1E06*    ETHANOL               23               H       9PMED8
>1E06*    XYLENE                23               H       9PMED8
1.55E5*   HEXANE                23               H       9PMED8

Henrys law (Pa m3/mol):
4.2E-02                         25               M       9DUPON
0.042*                          25

Octanol/water partitioning (log Kow):
>4*                             25               M       9DUPON

Acid dissociation (pKa):


Soil sorption:
soiltype     temp.   Kd     Koc    %om    pH    source   reference
SAND(CA)      25     4.4    1990   0.38           M      9DUPON
SNDY LM(CA)   25     6.4    1000   1.1    7.3     M      9DUPON
SILT LM(IA)   25     71     6100   2.0    5.3     M      9DUPON
CLY LM(GA)    25     105    12000  1.5    6.4     M      9DUPON



Field Dissipation halflife(days):
value           test area        pH      %om    source   reference
50                                                R      8EETNS
70                                                C      8GLEAM
14-28                                             R      RREVAH 97:93-100,1986
30-60                                             P      8EPAHO
65-240                                            R      8FULLE
35                                                M      9DUPON
57(22-240)*
32              OK               7       1.5      M      9DUPON
75              LA               5.9     0.8      M      9DUPON
44              AL               7.9     2        M      9DUPON
22              AZ               8.5     0.1      M      9DUPON
    
Halflife in soil:
Soiltype         aerobic      anaerobic         source   reference
                 163*
SANDY LM(CA)     88                                M     9DUPON
SILT LM(IA)      114                               M     9DUPON
CLAY LM(GA)      287                               M     9DUPON


Comments:
SOIL SORPTION KOC VALUE 5273(1000-12000); AEROBIC 163(88-287