Registration Dossier
Registration Dossier
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EC number: 231-765-0 | CAS number: 7722-84-1
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Hydrogen peroxide is reactive and a polar substance with a short half-life, and the log KOW value of hydrogen peroxide is estimated at approximately –1.5. In regards of its high solubility in water, significant partition of hydrogen peroxide to the sediment is not expected (cf., European Union Risk Assessment Report: hydrogen peroxide; European Commission 2003; page 27).
Key value for chemical safety assessment
Additional information
Moreover, microbial activity, which is considered the key parameter of the rate of degradation of hydrogen peroxide in aquatic systems, is known to be particularly high at the boundary layer between the water and the sediment phase. Therefore, concentrations of hydrogen peroxide in the sediment and also risk to sediment organisms are considered to be negligible. In consideration of these points, testing on sediment dwelling organisms is deemed not necessary. This statement is also supported by the calculated bioconcentration factors for fish and earthworm of 1.4 and 3.3, respectively.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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