ARS PESTICIDE PROPERTIES DATABASE last updated May 1995

name: TETRACHLORVINPHOS              CASRN: 22248-79-9   

molecular formula: C10H9CL4O4P                
molecular weight: 366                        
physical state: S                      
(L=liquid; G=gas; S=solid)
reference: 9PMED9

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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.
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value              medium     temp.    pH  source   reference
-----              ------     -----    --  ------   ---------

Boiling point (deg C):

Melting point (deg C):
94 - 97                                      H      9PME10

Decomposition point (deg C):

Heat of vaporization (deg C):

--RATE CONSTANTS--

Hydrolysis (per day):
0.013                           50     3     H      9PME10
0.016                           50     7     H      9PME10
0.208                           50     10.5  H      9PME10

Photolysis (per day):

Vapor pressure (mPa):
0.0056                          20           H      9PMED9

Water solubility (ppm): 
11*                             20           H      9PMED9
                                             H      9ACHB2 1983
15                              24           P      6EPAPF vol. II

Organic solubility (ppm):
<2.0E5      ACETONE             20           H      9PME10        
4.0E5       CHLOROFORM          20           H      9PME10
4.0E5       DICHLOROMETHANE     20           H      9PME10
<1.5E5      XYLENE              20           H      9PME10

Henrys law (Pa m3/mol):
1.86E-4                         20           H      9PMED9

Octanol/water partitioning (log Kow):

Acid dissociation (pKa):
                                                          

Soil sorption:
soiltype         temp.    Kd     Koc    %om    pH   reference
--------         -----    --     ---    ---    --   ---------
                                 900                W              

Field dissipation halflife(days):
value              test area          pH    source  reference
-----              ---------          --    ------  ---------
2                                            P      6USEPA

Halflife in soil:
soiltype           aerobic  anaerobic       source  reference
--------           -------  ---------       ------  ---------

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