ARS PESTICIDE PROPERTIES last update May 1995


name:CHLORIDAZON                               CASRN: 1698-60-8

molecular formula: C10H8CLN3O
molecular weight : 221.65
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):
205    -    206                                  H     9ACHB2

Decomposition point(deg C):
       -

Heat of vaporization(deg C):


--RATE CONSTANTS--

Hydrolysis (per day):

Photolysis (per day):

Vapor pressure (mPa):
6.65E03                          20              H     9HERBH
9.84E03                          40              H     9HERBH


Water solubility (ppm):       -temp-         -source-  -reference-
400*                             20              H     9HERBH


Organic solubility (ppm):
2.8E04*   ACETONE                20              H     9PMED8
700*      BENZENE                20              H     9PMED8
3.4E04*   METHANOL               20              H     9PMED8

Henrys law (Pa m3/mol):

Octanol/water partitioning (log Kow):
1.19                                      7      H     9PME10

Acid dissociation (pKa):

Soil sorption:
soiltype       temp.   Kd    Koc    %om   pH   source  reference
                             160                 R     EESADV
                             86                  C     8CREAM
                             112                 C     8CREAM
                             120*                R     EESADV

Field Dissipation halflife(days):
value           test area          pH    %OM   source  reference
18(14-21)*                                       H     9ACHB2 1983 ED.
                                                 H     9HERBH

Halflife in soil:
Soiltype              aerobic      anaerobic   source  reference

Comments:
SOIL SORPTION KOC=120(86-160)