ARS PESTICIDE PROPERTIES last update May 1995
name:SULFOMETURON-ME                           CASRN: 74222-97-2molecular formula: C15H16N4O5S
molecular weight : 364.4
physical state   : S
(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):
       -Melting point(deg C):
203    -    205                                  M        9DUPON,1999Decomposition point(deg C):
       -Heat of vaporization(deg C):--RATE CONSTANTS--Hydrolysis (per day):
0.050*                           25     5        M       9DUPON
<0.023*                          25     7,9      M       9DUPON
Photolysis (per day):
0.030*               SOIL        25     6.8      M       9DUPON
0.012*               WATER       25     9        M       9DUPONVapor pressure (mPa):
6.7E-11                          25              M       9DUPON,1999
Water solubility (ppm):     -temp-  -pH-      -source-  -reference-
244*                          25     7           M       9DUPON
12000*                        25     8.6         M       9DUPON
6.4*                          25     5           M       9DUPONOrganic solubility (ppm):
2.4E3*    ACETONE             25                 M       9DUPON,1999
1.5E03*   ACETONITRILE        25                 M       9DUPON,1999
32*       DIETHYL ETHER       25                 M       9DUPON,1999
137*      ETHANOL             25                 M       9DUPON,1999
37*       XYLENE              25                 M       9DUPON,1999Henrys law (Pa m3/mol):
1.01E-13                      25     7           M       9DUPON,1999
4.4E-12                       25     5           M       9DUPON,1999Octanol/water partitioning (log Kow):
-0.46*                        25     7           M       9DUPON
-1.87                         25     9           M       9DUPON,1999
1.01                          25     5           M       9DUPON,1999Acid dissociation (pKa):
5.2*                          25                 M       9DUPON,1999
Soil sorption:
soiltype     temp.   Kd     Koc    %om    pH   source    reference
SANDY LM(DE)  25     0.71   87     1.4    5.6    M       9DUPON
SILT LM(IL)   25     2.85   122    4.02   6.5    M       9DUPON
SILT LM(DE)   25     0.97   61     2.75   6.4    M       9DUPON
SAND(FL)      25     1.0    71     2.43   6.3    M       9DUPON
                            85* Field Dissipation halflife(days):
value          test area           %OM    pH   source    reference
10-20*         MOIST FIELDS                       M      9DUPON
100-120*       ARID FIELDS                        M      9DUPON
14             DE                   2.8   6.4     M      9DUPON,1999
7              NC                   0.3   4.9     M      9DUPON,1999
90             OR                   1.9   5.3     M      9DUPON,1999
150            CO                   2.4   7.4     M      9DUPON,1999
7              MS                   1.3   5.5     M      9DUPON,1999
35             SASK.                2.3   7.3     M      9DUPON,1999
14             MS                   1.7   6.7     M      9DUPON,1999
12             IL                   3.1   6.3     M      9DUPON,1999
15             TX                   2.3   7.9     M      9DUPON,1999
25             CA                   1.2   7.8     M      9DUPON,1999
Halflife in soil:
Soiltype           aerobic      anaerobic      source    reference
SILT LOAM(DE)       28*                           M      9DUPON
Comments:
SOIL SORPTION KOC VALUE=85(61-122); WATER SOLUBILITY VALUE
6.4=PH5, 244=PH7, 12000=PH8.6; AEROBIC 28=PH6.4 25 DEGREES C.
2.8%OM.