ARS PESTICIDE PROPERTIES last update May 1995


name:DIPROPETRYN                               CASRN: 4147-51-7

molecular formula: C11H21N5S
molecular weight : 255.4
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9CIBAG

_________________________________________________________________________
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):
104    -    106                                  H     9ACHB2,2ND ED.,1987

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE*                          25     5-9      M     9CIBAG

Photolysis (per day):
0.396*               SOIL               7.7      M     9CIBAG
2.89*                WATER       25              M     9CIBAG

Vapor pressure (mPa):
0.097*                           20              M     9CIBAG


Water solubility (ppm):       -temp-         -source- -reference-
16*                              20              M     9CIBAG


Organic solubility (ppm):
2.7E+5*   ACETONE                20              H     9ACHB2,2ND ED.,1987
3.0E+5*   DICHLOROMETHANE        20              H     9ACHB2,2ND ED.,1987
2.2E+5*   TOLUENE                20              H     9ACHB2,2ND ED.,1987
1.9E+5*   METHANOL               20              H     9ACHB2,2ND ED.,1987
1.3E+5*   N-OCTANOL              20              H     9ACHB2,2ND ED.,1987
9.0E+3*   HEXANE                 20              H     9ACHB2,2ND ED.,1987

Henrys law (Pa m3/mol):
0.00155*                         20              M     9CIBAG

Octanol/water partitioning (log Kow):
3.45*                            25              M     9CIBAG

Acid dissociation (pKa):



Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                1170                  EESADV
                                950                   EESADV
                                1170                  8SWAMD
                                1180                  8SWAMD
LOAM                    024.6   882      4.8   5.9    9CIBAG
SAND                    01.5    430      0.6   7.7    9CIBAG
SANDY LOAM              05.0    717      1.2   7.6    9CIBAG
SANDY LOAM              08.9    383      4.0   7.8    9CIBAG
                                860*

Field Dissipation halflife(days):
value             test area        pH        source   reference
10-30                                           W     
20(10-30)*

Halflife in soil:
Soiltype            aerobic      anaerobic   source   reference
SAND (pH7.7)         117                        M     9CIBAG


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