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EC number: 692-614-6
CAS number: 5660-53-7
According to a study performed using the batch equilibrium method, the substance can be considered qualitatively mobile for all soils tested at soil/solution ratio of 1:2.
log Koc of the test substance was performed using the batch equilibrium
method according to OECD guideline 106 and GLP. No deviation from the
guideline was observed during the study.
soils from Ontario, Canada, were used for the test: silty clay loam,
loam, sandy loam, clay loam and loamy sand. Solutions of Test Item at
750 mg/L in 0.01M CaCl2 were added to soil samples at a soil/solution
ratio of 1:2. The soils were then shaken at 100 rpm for a 24 hour period
until adsorption equilibrium was reached. Samples of the aqueous phase
were taken at 3, 6, 24 and 48 hours using the serial method and were
analyzed by HPLC method. Kd values from a low of 0.33 cm3/g for silty
clay loam soil to a high of 2.44 cm3/g for loamy sand soil were found.
At a soil/solution ratio of 1:2, Koc values ranged from 9.4 (loamy sand)
to 38.44 (sandy loam). The high organic carbon content soils adsorbed
more of the substance than the soils containing lower amounts of organic
carbon. In general, chemicals with Kd ≤ 1 cm3/g are considered to be
qualitatively mobile. The substance can be considered qualitatively
mobile for all soils tested at soil/solution ratio of 1:2.
Koc values are summarised below (for a
soil/solution ratio of 1:2):
Silty clay loam
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