Registration Dossier
Registration Dossier
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EC number: 205-355-7 | CAS number: 139-13-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable (according to OECD criteria).
Key value for chemical safety assessment
Additional information
NTA acid is readily biodegradable. In a CO2 evolution test according to OECD 301B the biodegradation of NTA acid was investigated [BASF SE, 2009]. After 14 days 89 % degradation was determined. Further tests with NTA acid [Strotmann et al., 1995] and with the analog salt Na3NTA [BASF AG, 1983], confirms this result. Biodegradation in the marine environment seems to be slow. In a DOC-removal test with marine bacteria according to ISO 16221 < 10% degradation observed after 59 days [BASF SE, 2010].
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