ARS PESTICIDE PROPERTIES last update May 1995


name:ORYZALIN                                  CASRN: 19044-88-3

molecular formula: C12H18N4O6S
molecular weight : 346.36
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):
141    -    142                                  H     9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
<.013                           30              H     9HERBH
                                                H     9ACHB2 1983 ED.
<.0013*                         25              M     7LILLY


Water solubility (ppm):       -temp-         -source-  -reference-
2.5*                            25              H      9HERBH
                                                H      9ACHB2 1983 ED.
                                                M      7LILLY
                                                H      JAFCAU 30:1032-1035,1982
2.4                           25                C      EESADV

Organic solubility (ppm):
>5E05*    ACETONE             25                H      9PMED8
>5E04*    METHANOL            25                H      9PMED8
1.6E03*   XYLENE              25                H      9PMED8

Henrys law (Pa m3/mol):

Octanol/water partitioning (log Kow):

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.   Kd     Koc    %om   pH  source  reference
                             2700               R     EESADV
                             100                C     9CREAM
                             93                 E     JAFCAU 29:1050-1059,1981
                             600*               M     7LILLY

Field Dissipation halflife(days):
value           test area        pH   %OM     source  reference
60                                               H    9HERBH
20*                                              M    7LILLY
48-128                                           C    8CREAM
42                                               R    8FULLE

Halflife in soil:
Soiltype               aerobic      anaerobic   source    reference

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