ARS PESTICIDE PROPERTIES last update May 1995


name:ETRIDIAZOLE                               CASRN: 2593-15-9

molecular formula: C5H5CL3N2OS
molecular weight : 247.53
physical state   : L
(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):
95     -           1mmHg                         H     9ACHB2

Melting point(deg C):
19.9   -                                         H     9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
6.73E-03*                        25     6        M     6UNIRO
8.56E-03*                        25     9        M     6UNIRO

Photolysis (per day):
0.346*               SOIL                        M     6UNIRO
15*                  WATER       25              M     6UNIRO

Vapor pressure (mPa):
4E04                             38              M     6UNIRO
1427                             25              M     6UNIRO

Water solubility (ppm):        -temp-      -  source- -reference-
117.1*                           25              M     6UNIRO

Organic solubility (ppm):

Henrys law (Pa m3/mol):
3.016                            25              M     6UNIRO

Octanol/water partitioning (log Kow):

Acid dissociation (pKa):
2.77*                            25              M     6UNIRO


Soil sorption:
soiltype        temp.   Kd      Koc       %om   pH     reference
SILT LOAM               1.41    240       0.7   4.7    6UNIRO
LOAMY SAND              5.31    346       3.8   5.1    6UNIRO
                                >=10000                8CREAM
                                4400                   CMSHAF 10:833-845,1981
                                1700*

Field Dissipation halflife(days):
value             test area        pH         source   reference
<14*                                             M     6UNIRO

Halflife in soil:
Soiltype            aerobic      anaerobic    source   reference
SILT LOAM             9.5                        M     6UNIRO
SAND                  9.0                        M     6UNIRO
                      9.3*


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