ARS PESTICIDE PROPERTIES last update May 1995


name:NORFLURAZON                               CASRN: 27314-13-2

molecular formula: C12H9CLF3N3O
molecular weight : 303.7
physical state   : S
(L=liquid; G=gas; S=solid)
reference:

_________________________________________________________________________
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):
174    -    180                                  H     9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE                          25     5-9      M     6SANDO

Photolysis (per day):
0.792               SOIL        25              M     6SANDO
16                  WATER       25              M     6SANDO
0.41                SOIL        25              M     6SANDO
6.7                 WATER       25              M     6SANDO
0.0169*             SOIL        25
0.68*               WATER       25

Vapor pressure (mPa):
1.6E-3                          20              M     6SANDO
3.7E-2                          40              M     6SANDO
5.5E-1                          60              M     6SANDO
5.9                             80              M     6SANDO
51                              100             M     6SANDO
0.00387*                        25              M     6SANDO


Water solubility (ppm):       -temp-        -source-  -reference-
34*                             25
33.7                            25              M     6SANDO
28.0                            23              H     9HERBH
                                                H     JAFCAU 30:1032-1035,1982
28                              25              R     EESADV

Organic solubility (ppm):
5E04*      ACETONE              25              M     6SANDO
1.4E05*    ETHANOL              25              M     6SANDO
2.5E03*    XYLENE               25              M     6SANDO

Henrys law (Pa m3/mol):
3.46E-5*                        25              M     6SANDO

Octanol/water partitioning (log Kow):
2.45*                           25              M     6SANDO

Acid dissociation (pKa):



Soil sorption:
soiltype       temp.   Kd     Koc    %om   pH  source reference
CLAY LOAM      23      8.8    490    1.8   7.4    M   6SANDO
SANDY LOAM     23      2.6    430    0.6   7.9    M   6SANDO
SILT LOAM      23      2.6    370    0.7   5.7    M   6SANDO
SAND           23      0.73   120    0.6   7.4    M   6SANDO
                              353*

Field Dissipation halflife(days):
value          test area        pH   %OM     source    reference
163*           MS(COTTON)                      M       6SANDO

Halflife in soil:
Soiltype            aerobic      anaerobic   source    reference
LOAM(MS)             130*         ~240         M       6SANDO


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