ARS PESTICIDE PROPERTIES last update May 1995


name:TRIDIPHANE                                CASRN: 58138-08-2

molecular formula: C10H7CL5O
molecular weight : 320.4
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9ACHB2

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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):
42.8   -                                         H     9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
0.0087*                          35     5-9      M     6DOWCH

Photolysis (per day):
0.019*               WATER       25              M     6DOWCH

Vapor pressure (mPa):
29*                              25              H     9ACHB2
                                                 H     9ACHB2 7TH ED.,1989


Water solubility (ppm):        -temp-       -source-   -reference-
1.8*                             22
0.9                                              C     8GLEAM
1.8                              21              H     9HERBH 6TH ED.,1989
1.8                              25              H     9ACHB2

Organic solubility (ppm):
9.1E6*    ACETONE                                H     9PMED8
5.6E6*    CHLOROBENZENE                          H     9PMED8
7.1E6*    DICHLOROMETHANE                        H     9PMED8
9.8E5*    METHANOL                               H     9PMED8
4.6E6*    XYLENE                                 H     9PMED8

Henrys law (Pa m3/mol):
5.16*

Octanol/water partitioning (log Kow):
4.3*                                             M     6DOWCH                  

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.    Kd    Koc     %om   pH  source  reference
                             5600*               M     6DOWCH


Field Dissipation halflife(days):
value           test area        pH            source  reference
70                                               C     8GLEAM
28                                               H     9HERBH 6TH ED.,1989
49(28-70)*


Halflife in soil:
Soiltype           aerobic      anaerobic      source  reference
                    26*                          M     6DOWCH                 


Comments:
AEROBIC VALUE26=18-35 25 DEGREES C.