ARS PESTICIDE PROPERTIES last update May 1995


name:FLUAZIFOP-P-BUTYL                         CASRN: 79241-46-6

molecular formula: C19H20F3NO4
molecular weight : 383.4
physical state   : L
(L=liquid; G=gas; S=solid)
reference:9PME10

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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):
164    -           0.02mmHg                      H    9PME10

Melting point(deg C):
5      -                                         H    9PME10

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
0.033*                           RT                    9PMED8(MOIST SOIL)
STABLE                           25     5        M     8ICIAG
0.0089                           25     7        M     8ICIAG
0.554                            25     9        M     8ICIAG

Photolysis (per day):
STABLE*                          RT              H     9PMED8

Vapor pressure (mPa):
0.033*                           20              M     8ICIAG


Water solubility (ppm):     -temp-          -source-   -reference-
2                             RT                 H     9HERBH
2*                            20                 H     9FACHB, 1990
1                                                H     9PMED8


Organic solubility (ppm):
MISCIBLE*  ACETONE                               H     9PMED8
MISCIBLE*  DICHLOROMETHANE                       H     9PMED8
MISCIBLE*  ETHYL ACETATE                         H     9PMED8
MISCIBLE*  HEXANE                                H     9PMED8
MISCIBLE*  METHANOL                              H     9PMED8
MISCIBLE*  TOLUENE                               H     9PMED8
MISCIBLE*  XYLENE                                H     9PMED8

Henrys law (Pa m3/mol):
0.0063*                           20             M     8ICIAG

Octanol/water partitioning (log Kow):
4.5*                                             M     8ICIAG 03/01/90

Acid dissociation (pKa):


Soil sorption:
soiltype        temp.   Kd       Koc     %om   pH     reference
                                 5700*                8ICIAG

Field Dissipation halflife(days):
value           test area        pH        source     reference
20(ACID)*                                     H       9ACHB2
15(10-25)ACID                                 M       8ICIAG

Halflife in soil:
Soiltype           aerobic      anaerobic   source    reference

Comments:
*BUTYL ESTER RAPIDLY HYDROYZED TO PARENT ACID, WHICH HAS A
HALF LIFE OF 35-140 DAYS(9PMED8-9TH ED. 1991)