ARS PESTICIDE PROPERTIES last update May 1995


name:THIOPHANATE-ME                            CASRN: 23564-05-8

molecular formula: C12H14N4O4S2
molecular weight : 342.4
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):
172    -                                         H     9PME10

Decomposition point(deg C):
172    -                                         H     9PME10

Heat of vaporization(deg C):


--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
<9.5E-3*                         25               H     9PME10


Water solubility (ppm):        -temp-         -source-  -reference-
3.5*                             20               H     9ACHB2 1983 ED.

Organic solubility (ppm):
5.8E04*   ACETONE                20               H     9PMED8
2.9E04*   METHANOL               20               H     9PMED8
2.6E04*   CHLOROFORM             20               H     9PMED8

Henrys law (Pa m3/mol):
<9.3E-4*                                          H     9PME10

Octanol/water partitioning (log Kow):
1.5                                               H     9PME10

Acid dissociation (pKa):
7.28                                              H     9PME10

Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                9                     JAFCAU 29:1050-1059,1981
                                1830*                 CMSHAF 10:833-845,1981

Field Dissipation halflife(days):
value             test area        pH        source   reference
6*                                              H     9PME10
Halflife in soil:
Soiltype            aerobic      anaerobic   source   reference

Comments:
BREAKS DOWN TO CARBENDAZIM IN PLANTS