Registration Dossier
Registration Dossier
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EC number: 919-274-6 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The following information is available for the biodegradation water endpoint:
Mead C. (2008) AS305BD: Assessment of Ready Biodegradability ; CO2 evolution test. Testing laboratory: Safepharm Laboratories Limited. Report no.: 0703/0386. Owner company: Chevron Energy Technology Company. Report date: 2008-03-05.
This study has been rated as 1 under the Klimisch scoring system and so is considered to be sufficient to address this endpoint.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
In a ready biodegradability study (OECD 301B), 36% biodegradation was observed after 28 days (Mead, C.(2008a)). However, this study was performed with an initial concentration of test material 455 times higher than the water solubility of the substance where most of the compound was not completely dissolved. In another ready biodegradability study (Cai, L., 2006) performed with the calcium substance of the same salt, 79% biodegradation was observed after 28 days.
AS305BD will always be ionized in the environment due to its pKa value. Therefore AS305BD can be defined as readily biodegradable.
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