ARS PESTICIDE PROPERTIES DATABASE last updated May 1995

name: MEFLUIDIDE                     CASRN: 53780-34-0   

molecular formula: C11H13F3N2O3S              
molecular weight: 310.3                      
physical state: S                      
(L=liquid; G=gas; S=solid)
reference: 9PMED9

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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.
__________________________________________________________________________

value              medium     temp.    pH  source   reference
-----              ------     -----    --  ------   ---------

Boiling point (deg C):

Melting point (deg C):
183 - 185                                    H      9PME10

Decomposition point (deg C):

Heat of vaporization (deg C):

--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
<10                             25           H      9PMED9

Water solubility (ppm): 
180                             23           H      9PMED9
                                             H      9ACHB2 1983
                                             H      9HERBH 6th ED 1989

Organic solubility (ppm):
3.50E5      ACETONE             23           H      9PME10
6.4E4       ACETONITRILE        23           H      9PME10 
310         BENZENE             23           H      9PME10
3.10E5      METHANOL            23           H      9PME10
5.0E4       ETHYL ACETATE       23           H      9PME10
3900        ETHYL ETHER         23           H      9PME10
2100        DICHLOROMETHANE     23           H      9PME10
120         XYLENE              23           H      9PME10

Henrys law (Pa m3/mol):
<0.017                                       H      9PME10
                   
Octanol/water partitioning (log Kow):
2.08                                         H      6MONTG

Acid dissociation (pKa):
4.6                                          H      6MONTG
                                                          

Soil sorption:
soiltype         temp.    Kd     Koc    %om   pH    reference
--------         -----    --     ---    ---   --    ---------
                                 47                 9PMED9
                                 200                9PMED9
                                 6 (AMINE)          W         
                                 250                6MONTG
                                 200*               W

Field dissipation halflife(days):
value              test area          pH    source  reference
-----              ---------          --    ------  ---------
14                                           P      6USEPA
<7                                           H      9PME10
                                             H      9ACHB2 1983
4*                                           W

Halflife in soil:
soiltype           aerobic  anaerobic       source  reference
--------           -------  ---------       ------  ---------

Comments: