Registration Dossier
Registration Dossier
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EC number: 282-029-0 | CAS number: 84082-82-6 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Salix alba, Salicaceae.
Endpoint summary
Administrative data
Description of key information
Reliable data on ready biodegradability demonstrate without doubt that White willow bark extract is readily biodegradable fulfilling the 10 -day window requirement.
Further experimental data on environmental fate properties are not available. However, the very low log Pow value allows to conclude on a) a very low bioaccumulation potential and b) a very low adsorption potential on sewage sludge, sediment and soil.
Additional information
The reliable and valid test on ready biodegradability allows to conclude on a rapid and thorough mineralisation of the substance. As such, decomposition to CO2 will be rapid.
Further, the UVCB registration substance has uniformly a very low experimentally determined log Pow (< 0.3; extrapolated log-value: -2.2; OECD 117), without any fraction of higher log Pow. Adsorption is related to this parameter and can thus be concluded to be very low.
Accordingly, the substance must be considered to be of a very low adsorption potential for sludge, sediment, or soil. Due to its rapid mineralisation there will be no potential for long-term accumulation in sediment or soils.
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