ARS PESTICIDE PROPERTIES DATABASE last updated Oct 1, 2001


name: ASULAM,SODIUM                             CASRN: 2302-17-2


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

WATER SOLUBILITY (mg/L): 550000
FIELD HALF-LIFE (days): 7
SOIL ORGANIC CARBON SORPTION (Koc, mL/g): 40 {1}
VAPOR PRESSURE (mm Hg): 0
pKa: 4.8


PUBLISHED AND MANUFACTURER VALUES AND SOURCES

molecular formula: C8H9N2NaO4S
molecular weight : 252.23
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):
143    -    144                                  H     9ACHB2,2ND ED.,1987

Decomposition point(deg C):
       -

Heat of vaporization(deg C):


--RATE CONSTANTS--

Hydrolysis (per day):
0.01100*                         25     5        M     9RHPOU

Photolysis (per day):
0.04300*             SOIL        25              M     9RHPOU

Vapor pressure (mPa):
<1.3E-02*                        25              M     9RHPOU



Water solubility (ppm):       -temp-         -source-  -reference-
5.5E+5*                          23              M     9RHPOU
4.0E+3                        20-25              H     9PMED8,8TH ED.,p.34,1987
5.0E+3                        20-25              H     9ACHB2,2ND ED.,1987

Organic solubility (ppm):
2.8E05*   METHANOL               23              M     9RHPOU
.3E+1     HEXANE                 23              M     9RHPOU
.1E+1     DICHLOROMETHANE        23              M     9RHPOU
3.4E+5*   ACETONE                23              H     9ACHB2,2ND ED.,1987
2.8E+05*  METHYL ETHYL KETONE    23              H     9ACHB2,2ND ED.,1987
1.2E+05*  ETHANOL                23              H     9ACHB2,2ND ED.,1987
>8E05*    DIMETHYLFORMAMIDE      23

Henrys law (Pa m3/mol):
<6.0E-09*                        25              M     9RHPOU

Octanol/water partitioning (log Kow):
.763                             25              M     9RHPOU
-.523                            25              M     9RHPOU

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.   Kd     Koc    %om   pH   source  reference
                             300                 R     EESADV, 4:28,1980
                             40                  R     EESADV, 4:28,1980
                             34                  P     8EPAGR
                             122                 P     8EPAGR
                             252                 P     8EPAGR
SAND                  00.8   114    1.0   6.8    M     9RHPOU
SAND                  01.0   146    5.5   6.9    M     9RHPOU
SANDY LOAM            01.35  63     3.7   7.0    M     9RHPOU
SANDY LOAM            02.72  146    3.2   7.2    M     9RHPOU
                             138*

Field Dissipation halflife(days):
value           test area        pH  %OM       source  reference
11(7-31)*
3-10                                              P    8EPAGR

Halflife in soil:
Soiltype           aerobic      anaerobic      source  reference
SANDY LOAM          10*                           M    9RHPOU


Comments:
MELTING POINT RANG 143-144(PARENT)
SOIL SORPTION KOC VALUE 138(34-300)