Pesticide Properties Database -Data Entered May 1999

Name: Flupyrsulfuron methyl                                                                      CASRN: 144740-54-5

Molecular Formula: C 15 H 13 F3 N5 Na 07 S
Molecular Weight: 487.4
Physical State: S
(L=Liquid, G=Gas, S=Solid)
Reference: Pesticide Manual, I 11h Ed.

Key to sources: (M)anufacturer, (H)andbook, (R)eview, (E)xperiment, (C)alculated
                           (U)nknown, (EPA)EPA data, (W)auchope

* denotes a selected value where multiple values of a property are listed

Boiling Point (deg C):
Value                            Medium                    Temp             pH                         Source        Reference

Melting Point (deg C):
Value                            Medium                    Temp            pH                           Source        Reference
165-170                                                                                                              M           DuPont

Decomposition (deg C):
Value                            Medium                   Temp            pH                          Source       Reference

Hydrolysis(per day):
Value                             Medium                  Temp            pH                           Source       Reference
0.016                             Water                      20                5                               M              DuPont
0.058                             Water                      20                7                               M              DuPont
1.65                               Water                      20                9                               M              DuPont

Photolysis (per day):
Value                             Medium                 Temp             pH                            Source       Reference
0.017                             Water                      20                5                               M              DuPont
0.077                             Water                      20                7                               M              DuPont
1.73                               Water                      20                9                               M              DuPont

Vapor Pressure(mPa):
Value                             Medium                 Temp             pH                            Source       Reference
1.0E-6                                                           20                                                 M              DuPont

Water Solubility (ppm):
Value                            Medium                 Temp             pH                             Source       Reference
62.7                             Water                      20                5                                   M           DuPont
603                              Water                      20                6                                   M           DuPont
Unstable                       Water                      20                9                                   M           DuPont

Organic Solubility(ppm):         
Value                             Medium               Temp             pH                              Source      Reference

Henry's Law Constant (Pa3/mol):
Value                             Medium               Temp            pH                               Source      Reference
7.7E-9                                                        25               5                                   M            DuPont
8.1E-10                                                     25               6                                   M            DuPont

Octanol/Water Partitioning (log Kow):
Value                             Medium              Temp            pH                                Source     Reference
0.96                                                          20               5                                   M             DuPont
0.11                                                          20               6                                   M             DuPont
Unstable                                                    20               9                                   M             DuPont

Acid Dissociation Constant (pKa):
Value                            Medium              Temp             pH                                Source     Reference
4.9                                                                                                                   M            DuPont

Soil Sorption:
Soil Type                      Temp           Kd         Koc      %OM          pH               Source       Reference
Sandy loarn                    25             0.27         18          2.6             7.4                  M            DuPont
Sandy loam                    25             0.13         19          1.2             8.8                  M            DuPont
Silt loam                        25             0.30         24          2.2             7.4                  M            DuPont
Clay loam                      25             0.46         24          3.3             8.1                  M            DuPont
Loamy sand                    25             0.48         21          4.0             5.8                  M            DuPont
Silt loam                        25             0.31         36          1.5              8.0                  M            DuPont
Loam                             25             0.71         56          2.2              6.6                  M            DuPont
Sandy loam                    25             0.64         31          3.6              7.9                  M            DuPont

Field Dissipation Half-life(days):
Value                          Test Area                                pH            %OM              Source        Reference
10                              UK                                          7.3                  3.3                 M            DuPont
11                              UK                                          7.3                  3.3                 M            DuPont
6                                France                                     7.6                  1.9                 M            DuPont
6                                DE                                           6.1                  3.3                 M            DuPont

Half-life in Soil (days):
Soil Type                Aerobic                  Anaerobic                                           Source        Reference
Sandy loam                26                                                                                       M           DuPont
Sandy loam                58 (10 C)                                                                           M           DuPont
Sandy loam                8                                                                                         M           DuPont
Silt loam                    16                                                                                        M           DuPont
Clay loam                  10                                                                                        M           DuPont
Loam                        16                                                                                        M           DuPont
Sandy loam                                               31                                                       M           DuPont

Comments: