ARS PESTICIDE PROPERTIES last update May 1995


name:PROPAZINE                                 CASRN: 139-40-2

molecular formula: C9H16CLN5
molecular weight : 230.09
physical state   : S
(L=liquid; G=gas; S=solid)
reference: 9KHBCD,1975

_________________________________________________________________________
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):
212    -    214                                  R     9KHBCD,1975

Decomposition point(deg C):
       -

Heat of vaporization(deg C):


--RATE CONSTANTS--
Hydrolysis (per day):
0.011*                           25     5        E     PSSCBG, 12(1):51,1981

Photolysis (per day):

Vapor pressure (mPa):
2.1E-02                          30              R     9HRLCP
4.5E-01                          50              R     9HRLCP
4.0                              20              R     9HRLCP
0.017*                           25              M     9CIBAG
6.7E-04                          10              R     9HRLCP
0.0039                           20              H     9PMED8,8TH ED,709,1987


Water solubility (ppm):       -temp-          -source-       -reference-
3.0*                          20                 M     9CIBAG
8.6                           20                 H     9HERBH
5                             20                 H     9ACHB2 7TH ED.,1977
8.5                           20                 E     PSSCBG,12(1):46,1981
4.8                           20-25              R     ADCSAJ,111:73,1972
4.6                           26                 E     SSSAA8,36(4):608,1972

Organic solubility (ppm):
6.2E03*   BENZENE             20                 H     9PMED8
2.5E03i*  CARBON TETRACHLORIDE20                 H     9PMED8
6.2E03*   TOLUENE             20                 H     9PMED8

Henrys law (Pa m3/mol):
0.0013*                       25                 M     9CIBAG

Octanol/water partitioning (log Kow):
2.94                                             E     JEVQAA, 10(3):384,1981
3.01*

Acid dissociation (pKa):
1.85*                         22                 E     SSSAA8,36(4):608,1972


Soil sorption:
soiltype        temp.   Kd      Koc      %om   pH     reference
                                 603                  JPFCD2,B22(1):68,1987
                                 363                  JEVQAA,10(3):384,1981
                                 160                  EESADV4,31,1980
                                 154                  9EINSP PP.23-67
                                 160                  EESADV
                                 152                  9HFEDP
                                 210                  8GLEAM
                                 100                  8CREAM
                                 151                  8CREAM
                                 161*

Field Dissipation halflife(days):
value         test area        pH          source     reference
120                                           H       9HERBH
87                                            C       8GLEAM
64-124                                        C       8CREAM
127                                           R       8OUSSD
105                                           P       8EPAGR
35-231                                        P       8EPAGR
119-347                                       P       8EPAGR
84-168                                        P       8EPAGR
84                                            P       8EPAGR
123(35-347)*

Halflife in soil:
Soiltype               aerobic      anaerobic   source    reference

Comments:
NO LONGER SOLD BY CIBA