Registration Dossier
Registration Dossier
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EC number: 605-140-1 | CAS number: 158237-07-1
Endpoint summary
Administrative data
Description of key information
Additional information
Phototransformation in air:
Based on the calculated overall OH rate constant of 28.72 x 10^-12 [cm3/molecules sec] a half-life of the test substance in air of 4.4 hours corresponding to a chemical lifetime in air of 6.4 hours is assessed using a 12-hrs-day with 1.5 x 10^6 OH radicals/cm3. A more conservative assessment of the overall OH radical rate constant would result in a maximum chemical lifetime of the test substance of about 8 hours in the air. Thus, on account of the relatively short chemical lifetime of the test substance in the air it is to be expected that it can neither be transported in the gaseous phase over large distances nor accumulate in the atmospheric compartment.
Hydrolysis:
With regard to hydrolysis, the test item is considered as comparatively resistant to hydrolysis at ambient temperatures with extrapolated half-lives of 319 and 501 days under acidic and neutral conditions, respectively. Under alkaline conditions the test item is faster degradable with an extrapolated half-life of 69 days.
Phototransformation in water:
Direct phototransformation in aqueous solution is expected to contribute to elimination of the test substance in the environment to a low extent only. Taking into account different models half-lives ranging from 64 days to up to > 1 year were determined.
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