Registration Dossier
Registration Dossier
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EC number: 443-950-5 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
The two screening tests for biodegradation present contrasting results. The CO2 evolution test (modified sturm test) presents data showing no significant biodegradation of the test substance, whereas the closed bottle test presents data showing that the substance achieves >60 % biodegradation in the 10 -day window, indicating that the substance is readily biodegradable.
This chemical substance has a relatively high vapour pressure of 2080 Pa, indicating that it is in the upper range of the "medium volatility" band (see ECHA Guidance on Information Requirements and Chemical Safety Assessment Chapter R14). In accordance with OECD Guideline 301, it is not applicable to test volatile substances using the CO2 evolution method and methods with no headspace, such as the closed bottle test, are better suited for determining the biodegradability of volatile substances.
The data from the closed bottle test was therefore considered reliable in comparison with the CO2 evolution test and thus phosphinicocarboxylates, sodium salts, is considered readily biodegradable.
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