ARS PESTICIDE PROPERTIES DATABASE last updated May 1995
name: NICOSULFURON                   CASRN: 111991-09-4  
molecular formula: C15H18N6O6S                
molecular weight: 410.4                      
physical state: S                      
(L=liquid; G=gas; S=solid)
reference: 9PME10
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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.
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value              medium     temp.    pH  source   reference
-----              ------     -----    --  ------   ---------
Boiling point (deg C):
Melting point (deg C):
141 - 144                                    M     9DUPON,1999
Decomposition point (deg C):
Heat of vaporization (deg C):
--RATE CONSTANTS--
Hydrolysis (per day):
0.046              WATER               5     M      9DUPON,1999
STABLE             WATER               7     M      9DUPON,1999
 
Photolysis (per day):
0.012              SOIL         25     6.2   M      9DUPON,1999
0.05               WATER        25     5     M      9DUPON,1999
0.004              WATER        25     7     M      9DUPON,1999
0.004              WATER        25     9     M      9DUPON,1999
Vapor pressure (mPa):
1.6E-11*                        25           P      6USEPA
1.3E-11                         25           P      6USEPA
Water solubility (ppm):                       
390                             28    5      P      6USEPA
18000                           28    7      P      6USEPA
250000                          28    9      P      6USEPA
22000                           25    7      H      9ACHB2 1983
44                              25    3.5    H      9ACHB2 1983
400                             25    5      M      9DUPON 1990
12000*                          25    7      M      9DUPON 1990
39200                           25    9      M      9DUPON 1990
Organic solubility (ppm):
1.8E4       ACETONE             25           M      9DUPON,1999
4500        ETHANOL             25           M      9DUPON,1999
6.4E4       DIMETHYLFORMAMIDE   25           M      9DUPON,1999
2.3E4       ACETONITRILE        25           M      9DUPON,1999
370         TOLUENE             25           M      9DUPON,1999
<20         HEXANE              25           M      9DUPON,1999
1.6E5       DICHLOROMETHANE     25           M      9DUPON,1999
Henrys law (Pa m3/mol):
1.64E-14                        25    5      M      9DUPON,1999
5.5E-16                         25    7      M      9DUPON,1999
1.7E-16                         25    9      M      9DUPON,1999
Octanol/water partitioning (log Kow):
-0.36                                 5      H      9PME10
-1.70*                                7      H      9PME10
-2.15                                 9      H      9PME10
 
Acid dissociation (pKa):
4.3*                             25          M      9DUPON 1990
Soil sorption:
soiltype         temp.    Kd     Koc    %om    pH    reference
--------         -----    --     ---    ---    --    ---------
                                 22           4.4   6USEPA
                                 23           6.5   6USEPA
                                 25           6.6   6USEPA
                                 70           5.4   6USEPA
SANDY LOAM(DE)    25      0.16   25           6.6   9DUPON,1999 
SANDY LOAM(NC)    25      0.28   23           6.5   9DUPON,1999
SILT LOAM(IL)     25      1.73   69           5.4   9DUPON,1999 
SILT LOAM(DE)     25      0.61   22           4.3   9DUPON,1999 
                                 30*          6.5   W
Field dissipation halflife(days):
value              test area          pH    source  reference
-----              ---------          --    ------  ---------
14                     MS             8      M      9DUPON,1990
21                     DE             6.5    M      9DUPON,1999
49                     IL             7.4    M      9DUPON,1999
Halflife in soil:
soiltype           aerobic  anaerobic       source  reference
--------           -------  ---------       ------  ---------
SLTY CLAY LM(IL)     26                      M      9DUPON
Comments: