ARS PESTICIDE PROPERTIES last update May 1995


name:TRIADIMEFON                               CASRN: 43121-43-3

molecular formula: C14H16CLN3O2
molecular weight : 293.76
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9MILES

_________________________________________________________________________
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):
82.3   -                                        H     9PMED8,8TH ED.,p.813,1987

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
<0.023*                         25     5,7,9    M     6MILES

Photolysis (per day):
1.39*               WATER       24              M     6MILES
0.008*              SOIL        25              M     6MILES
2.19*               WATER       30              M     6MILES

Vapor pressure (mPa):
2.0E-03*                        20              M     6MILES


Water solubility (ppm):       -temp-        -source-  -reference-
71.5*                           20              M     6MILES
260                             20              H     9PMED8,8TH ED.,p.813,1987
70                                              H     9FACHB


Organic solubility (ppm):
2.0E+5*   2-PROPANOL LOW        20              M     6MILES
4.0E+5    2-PROPANOL HIGH       20              M     6MILES
1.2E+6*   DICHLOROMETHANE       20              M     6MILES
4.0E+5*   TOLUENE               20              M     6MILES
6.0E+5    TOLUENE  HIGH         20              M     6MILES

Henrys law (Pa m3/mol):
8.2E-6*                         20              M     6MILES

Octanol/water partitioning (log Kow):
3.18*                           20              M     6MILES

Acid dissociation (pKa):



Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                273                   CMSHAF 10:833-845,1981
SANDY LOAM       25     1.85    320**    1.1   6.6    6MILES
SILT LOAM        25     6.93    454**    2.9   5.9    6MILES
SAND             25     2.42    460**    1.0   4.3    6MILES
CLAY LOAM        25     2.60    224**    2.2   6.4    6MILES
                                319*

Field Dissipation halflife(days):
value             test area        pH      source     reference
6-18                                         P        8EPAGR
28                                           P        8EPAGR
18                                           P        8EPAGR
59.7          CA(CHUALAR)LMY SND   7.3       M        6MILES
95.4          CA(FRESNO)LMY SND    7.8       M        6MILES
54(6-95)*

Halflife in soil:
Soiltype           aerobic      anaerobic   source    reference
SILT LOAM            6           15          M        6MILES
SANDY LOAM           5.6         23.1        M        6MILES
                     6*          19*


Comments:
SOIL SORPTION KOC VALUES WITH A DOUBLE ASTERISK WERE CALCULATED
USING A CONVERSION FACTOR OF 1.9(%OM=1.9%OC) RATHER THAN 1.72.
SELECTED KOC=319(273-460).