Oxidation photooxidation

Oxidation photooxidation t,/2 = 0.32-3.2 h estimated, based on estimated rate constant for the reaction with hydroxyl radicals in air (Atkinson 1987 quoted, Howard et al. 1991) photooxidation t,/2(aq.) = 1,57 - 157 yr estimated, based on measured rate constant for the reaction with singlet oxygen in benzene (Stevens et al. 1974 quoted, Howard et al. 1991). 

Oxidation photooxidation t/2 = 0.317-3.17 h, based on estimated rate constant for reaction with hydroxyl radical in air (Atkinson 1987 quoted, Howard et al. 1991). 

Both the expanded Schott and Schumacher mechanism and the Huybrechts et al. mechanism explain the fully oxidized photooxidation. However, only the mechanism of Huybrechts et al. can account for the results when the chlorination is not completely suppressed. Therefore that mechanism is to be preferred. 

Oxidation photooxidation t/2 = 8.4 d in the atmosphere with rate constant k = 1.9 x 10-12 cm3/molecules at 25°C for the reaction with photochemically produced hydroxyl radicals (Atkinson 1987 quoted, Howard 1993). Hydrolysis ... 

Oxidation photooxidation t, = 11.6 d in the atmosphere for the reaction with photochemically produced hydroxyl radical (Howard 1997). 

Oxidation photooxidation t,/2 > 9.9 d for the gas-phase reaction with hydroxyl radical in air, based on the rate of disappearance of hydrocarbon due to reaction with OH radical (Darnall et al. 1976) photooxidation t,A = 0.21 d in air, based on an estimated second-order rate constant k = 77.1 x 10 12 cm3 molecule-1 s 1 for the vapor-phase reaction with photochemically produced hydroxyl radicals of 5 x 105 radicals/cm3 in air (Atkinson 1987 quoted, Howard 1990). 

Oxidation photooxidation t1/2 = 8.0 h in air, based on measured rate constant k = 3 x 10 " cm3 molecule-1 s 1 at 25°C for the reaction with photochemically produced 8 x 10s molecules/cm3 hydroxyl radical (GEMS 1986 quoted, Howard 1989). 

Photolysis atmospheric and aqueous photolysis half-lives were estimated to be 288-864 h (Howard et al. 1991). Oxidation photooxidation t1/2 0.782-7.82 h based on reaction with OH radicals in air (Howard et al. 1991). Hydrolysis no hydrolyzable group (Howard et al. 1991). 

Oxidation photooxidation t,/2 = 2.4-6.0 d, based on estimated rate constant for the vapor-phase reaction with hydroxyl radicals in the atmosphere (Atkinson 1985 quoted, Howard 1991) measured hydroxy radical reaction rate constant for dicamba 4.8 x 1012 M 1 /h (Armbrust 2000). Hydrolysis t,/2 > 133 d for 2 pg mL 1 to hydrolyze in dark sterile pond water at 37-39°C (Scifres et al. 1973 quoted, Muir 1991) ... 

Oxidation photooxidation t,/2 = 92 d in air, based on estimation for the vapor-phase reaction with hydroxyl radicals in atmosphere (Atkinson 1987 quoted, Howard 1991). 

Oxidation photooxidation tA = 2.5-24.8 h, based on an estimated rate constant for the vapor-phase reaction with hydroxyl radical in air with a deoxygenated endosulfan analog (Atkinson 1987 quoted, Howard et al. 1991). Hydrolysis first-order tA = 218 h, based on neutral aqueous hydrolysis rate constant k = (3.2 2.0) x 10 3 Ir1 for a-Endosulfan at pH 7 and 25°C (Ellington et al. 1986, 1987, 1988 quoted, Howard et al. 1991 Montgomery 1993) ... 

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