ARS PESTICIDE PROPERTIES last update May 1995                      


name:IMAZAPYR ISOPROPYLAMINE SALT              CASRN: 81510-83-0

molecular formula: C16H24N4O3
molecular weight : 320.4
physical state   : S
(L=liquid; G=gas; S=solid)
reference:9PMED8

_________________________________________________________________________
Key to sources: (M)Manufacturer, (R)eview, (H)andbook, (E)xperiment,
                (C)alculated, (U)nknown, (E)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):
128    -    130                                  H     9PMED8

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE (parent)                        5-9      H     9PMED8

Photolysis (per day):
0.115                                  5-9      H     9PMED8
Vapor pressure (mPa):
0.0*


Water solubility (ppm):        -temp-       -source- -reference-
6.5E05*                                         H     9PMED8

Organic solubility (ppm):

Henrys law (Pa m3/mol):

Octanol/water partitioning (log Kow):
0.1 (parent)                                    H     9PMED8

Acid dissociation (pKa):
3.6* (parent)                                   H     9PMED8, 9TH ED.
1.9* (parent)                                   H     9PMED8, 9TH ED.


Soil sorption:
soiltype        temp.   Kd       Koc      %om   pH      reference


Field Dissipation halflife(days):
value           test area        pH          source     reference
90-712                                           H      9HERBH 6TH ED.,1989
90                                               M      9AMCY1

Halflife in soil:
Soiltype          aerobic      anaerobic     source     reference
                  ca. 4.5                       H       9PMED8  

Comments: