ARS PESTICIDE PROPERTIES last update May 1995


name:MEPIQUAT CHLORIDE                         CASRN: 24307-26-4

molecular formula: C7H16CLN
molecular weight : 149.7
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9ACHB2

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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):
285    -                                         H     9ACHB2

Decomposition point(deg C):
       -    285

Heat of vaporization(deg C):

--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
<0.01*                           20              H     9ACHB2



Water solubility (ppm):       -temp-          -source-   -reference-
                                                  H     9ACHB2 7TH ED.,1977
>1E06*                           20               H     9ACHB2 1983 ED.

Organic solubility (ppm):
2E04*      ACETONE               20               H     9PMED8
1.05E04*   CHLOROFORM            20               H     9PMED8
1.62E05*   ETHANOL               20               H     9PMED8

Henrys law (Pa m3/mol):

Octanol/water partitioning (log Kow):

Acid dissociation (pKa):


Soil sorption:
soiltype      temp.   Kd    Koc     %om    pH    source  reference
                            1E6                    W    


Field Dissipation halflife(days):
value             test area        pH    %OM     source  reference
1000                                               W     


Halflife in soil:
Soiltype               aerobic      anaerobic   source    reference

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