ARS PESTICIDE PROPERTIES last update May 1995


name:IMAZETHAPYR                               CASRN: 81335-77-5

molecular formula: C15H19N3O3
molecular weight : 289.3
physical state   : S
(L=liquid; G=gas; S=solid)
reference:

_________________________________________________________________________
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):
169    -    173                                  H     9PME10

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
<0.013                          60               H     9PME10

Water solubility (ppm):       -temp-         -source- -reference-
1400*                           25               H     9HERBH 6TH ED.,1989
1415                                             H     9FACHB 1990

Organic solubility (ppm):
1.05E5    METHANOL                               H     9PME10
4.82E4    ACETONE                                H     9PME10
5E3       TOLUENE                                H     9PME10
1.8TE5    CL2ME                                  H     9PME10

Henrys law (Pa m3/mol):

Octanol/water partitioning (log Kow):
1.04 (pH5)                                       H     9PME10
1.5  (pH7)                                       H     9PME10
1.2  (pH9)                                       H     9PME10

Acid dissociation (pKa):
3.9*                                             E     WEESA6, 36:78(1988)



Soil sorption:
soiltype        temp.   Kd       Koc      %om   pH     reference
                                 7*                    CMSHAF 10:833-845,1981

Field Dissipation halflife(days):
value           test area        pH         source     reference
60-130                                        E         WEESA6 38:421-428,1990 95(60-130)*


Halflife in soil:
Soiltype               aerobic      anaerobic   source    reference

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