ARS PESTICIDE PROPERTIES last update May 1995


name:QUINOMETHIONATE                           CASRN: 2439-01-2

molecular formula: C10H6N2OS2
molecular weight : 234.29
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9MOBAY

_________________________________________________________________________
Key to sources: (M)Manufacturer, (R)eview, (H)andbook, (E)xperiment,
                (C)alculated, (U)nknown, (E)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):
169    -    170                                  H     9PMED8,8TH 
ED.,P.735,1987

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
0.099*                           25     5        M     6MILES
0.347*                           25     7        M     6MILES
8.318*                           25     9        M     6MILES

Photolysis (per day):
0.014*               SOIL        25              M     6MILES
1.260*               WATER       OD              M     6MILES

Vapor pressure (mPa):
0.027                            20              H     9ACHB2
0.026*                           20              M     6MILES


Water solubility (ppm):       -temp-         -source-  -reference-
1*                               20              E     6MILES
50                               20              H     9ACHB2

Organic solubility (ppm):
2.0E+3*   2-PROPANOL             20              M     6MILES
4.0E+4*   DICHLOROMETHANE        20              M     6MILES
2.5E+4*   TOLUENE                20              M     6MILES
1.8E+4*   CYCLOHEXANONE          20              H     9PMED8,8TH ED.,p.735,1987
1.0E+4*   DIMETHYLFORMAMIDE      20              H     9PMED8,8TH ED.,p.735,1987

Henrys law (Pa m3/mol):
6.1E-03*                         25              C     6MILES

Octanol/water partitioning (log Kow):
3.78*                            20              M     6MILES

Acid dissociation (pKa):


Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                ca5000                8CREAM
SILT LOAM        22     432     28235**  2.9   5.9    6MILES
SAND             22     56      10566**  1.0   4.3    6MILES
CLAY LOAM        22     248     21379**  2.3   6.4    6MILES
SANDY LOAM       22     147     25345**  1.1   6.6    6MILES 
                                16,500*

Field Dissipation halflife(days):
value           test area        pH          source   reference
2.0         CA(CHUALAR)LMY SND   7.3            M     6MILES
3.6         CA(FRESNO)LMY SND    7.8            M     6MILES
2.8*

Halflife in soil:
Soiltype           aerobic      anaerobic   source    reference
SANDY LOAM          0.05         3.7            M     6MILES
                    2.5*         3.7

Comments:
SOIL SORPTION KOC VALUED WITH A DOUBLE ASTERISK WERE CALCULATED
USING AN ORGANIC-MATTER-CONTENT FACTOR OF 1.9.
SOIL SORPTION KOC VALUE=16,500(5000-28235); AEROBIC=2.5(0.06-5)