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: