Registration Dossier
Registration Dossier
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EC number: 230-638-7 | CAS number: 7237-83-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ready Biodegradability of tris(oxiranylmethyl) benzene-1,2,4-tricarboxylate in a Manometric Respirometry Test
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
Additional information
The test item tris(oxiranylmethyl) benzene-1,2,4-tricarboxylate contains no nitrogen, therefore the evaluation of biodegradation has to be based on the ThODNH4. The criterion for ready biodegradability under the conditions of a manometric respirometry test is the 10-day window, describing the period between reaching at least 10% degradation and 60% degradation. This period should not exceed 10 days.
The mean biodegradation after 28 days of tris(oxiranyl-methyl) benzene-1,2,4-tricarboxylate was 59% (ThODNH4); the 10 day window criterion was not passed.
Whilst tris(oxiranylmethyl) benzene-1,2,4-tricarboxylate cannot be considered to be readily biodegradable under the strict terms and conditions of OECD Guideline No. 301F, the evidence of aerobic degradation (59%) that did not plateau before the end of the 28-day indicate the potential for complete mineralisation in the environment.
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