ARS PESTICIDE PROPERTIES DATABASE last updated Jan, 2002


name: BROMOXYNIL OCTANOATE ESTER                 CASRN: 1689-99-2


SELECTED VALUES FOR MODELING PURPOSES (from Hornsby, et al., 1996)

WATER SOLUBILITY (mg/L): 0.08
FIELD HALF-LIFE (days): 7 {1}
SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 10000 E
VAPOR PRESSURE (mm Hg): 4.8 x 10-6
pKa: 4.1 {1}


PUBLISHED AND MANUFACTURER VALUES AND SOURCES

molecular formula: C15H17Br2NO2
molecular weight : 403
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9RHPOU

_________________________________________________________________________
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):
45     -     46                                  H     9ACHB2,2ND ED.,1987

Decomposition point(deg C):
       -

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
STABLE*                          25     5        M     9RHPOU

Photolysis (per day):
3.15000*             WATER       25              M     9RHPOU

Vapor pressure (mPa):
0.64*                            25              M     9RHPOU


Water solubility (ppm):        -temp-       -source- -reference-
0.08*                            25             M     9RHPOU

Organic solubility (ppm):
7.4E+5*   TOLUENE                25             M     9RHPOU
7.6E+5*   ACETONE                25             M     9RHPOU
7.0E+5*   XYLENE              20-25             H     9ACHB2,2ND ED.,1987
7.0E+5*   DIMETHYL FORM.      20-25             H     9ACHB2,2ND ED.,1987
1.0E+5*   ETHANOL             20-25             H     9ACHB2,2ND ED.,1987
1.2E+5*   N-PROPANOL          20-25             H     9ACHB2,2ND ED.,1987
5.5E+5*   CYCLOHEXANONE       20-25             H     9ACHB2,2ND ED.,1987
6.2E+5*   ETHYL ACETATE       20-25             H     9ACHB2,2ND ED.,1987
8.0E+5*   CHLOROFORM          20-25             H     9ACHB2,2ND ED.,1987
5.0E+5*   CARBON TETRACHLOR   20-25             H     9ACHB2,2ND ED.,1987
1.7E+5*   METHANOL               25             M     9RHPOU

Henrys law (Pa m3/mol):
3.23*                            25             M     9RHPOU

Octanol/water partitioning (log Kow):
5.06*                            25             M     9RHPOU

Acid dissociation (pKa):
4.1*


Soil sorption:
soiltype      temp.   Kd     Koc     %om   pH  source   reference
                             190*               M       9RHPOU

Field Dissipation halflife(days):
value             test area        pH   %OM    source   reference
11(0.5-28)*
0.5-1                                           P       8EPAGR
8                 CA WHEAT                      M       9RHPOU
1                 NC WHEAT                      M       9RHPOU
7                 SOIL - CORN IL                M       9RHPOU
7                 SOIL - CORN NJ                M       9RHPOU
14                SOIL - M & B                  M       9RHPOU
10                SOIL-BARLEY M&B               M       9RHPOU
21                SOIL - WHEAT                  M       9RHPOU
12                SOIL 1980                     M       9RHPOU
28                SOIL 1980                     M       9RHPOU
7                 SOIL 1980                     M       9RHPOU

Halflife in soil:
Soiltype             aerobic      anaerobic   source    reference

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