ARS PESTICIDE PROPERTIES last update May 1995


name:DESMEDIPHAM                               CASRN: 13684-56-5

molecular formula: C16H16N2O4
molecular weight : 300.32
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):
120    -                                         H     9ACHB2

Decomposition point(deg C):

       -

Heat of vaporization(deg C):


--RATE CONSTANTS--
Hydrolysis (per day):
0.01*                            22     5        M     6NORAM
0.84*                            22     7        M     6NORAM
96*                              22     9        M     6NORAM

Photolysis (per day):
0.13*                SOIL       <30              M     6NORAM
0.074*               WATER       22              M     6NORAM
1.54                 AIR                         M     6NORAM

Vapor pressure (mPa):
4E-04*                           25              H     9ACHB2


Water solubility (ppm):        -temp-        -source- -reference-
7                                20              H     9HERBH
9*                               20              H     9ACHB2 7TH ED.,1977
                                                 M     6NORAM

Organic solubility (ppm):
2.85E05*  ACETONE                                H     9PMED8
1.99E04*  DICHLOROMETHANE                        H     9PMED8
20*       HEXANE                                 H     9PMED8
1.81E05*  ETHYL ACETATE                          H     9PMED8
1.87E05*  METHANOL                               H     9PMED8
1190*     TOLUENE                                H     9PMED8

Henrys law (Pa m3/mol):
1.33E-5*                       25                M     6NORAM

Octanol/water partitioning (log Kow):
3.52*                                            M     6NORAM

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.   Kd     Koc    %om   pH   source  reference
SANDY LOAM                   95                  M     6NORAM
SAND                         210                 M     6NORAM
                             150*     

Field Dissipation halflife(days):
value         test area        pH   %OM        source  reference
<30*                                             H     9HERBH
                                                 M     6NORAM
Halflife in soil:
Soiltype               aerobic      anaerobic  source  reference
                         7.7*        <20         M     6NORAM


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