Registration Dossier
Registration Dossier
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EC number: 204-820-1 | CAS number: 127-06-0
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Waiver based on unlikely exposure
Key value for chemical safety assessment
Additional information
Reliable measured data for simulation testing on ultimate degradation in surface water or sediment is not available. However, a waiver is being applied for simulation testing on ultimate degradation in surface water and ultimate degradation in sediment.
In accordance with Column 2 of REACH Annex IX, further biotic degradation testing does not need to be proposed if the chemical safety assessment does indicates there is no need to investigate further the degradation of the substance and its degradation products. It is proposed that testing is waived as exposure potential is unlikely. Also, the substance’s low hydrophilicity is demonstrated by the very low log octanol-water partition coefficient (Log Kow) of 0.077 at a neutral pH and low Koc (0.517) indicating low adsorptive potential. Therefore, acetone oxime is considered to have low potential for absorption to soil and sediment and no testing is necessary based on unlikely exposure. Identification of degradation products (required in Section 9.2.3) is also not necessary.
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