Registration Dossier
Registration Dossier
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EC number: 257-036-7 | CAS number: 51181-50-1
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
EDTA can be biodegraded in soil under aerobic conditions. Based on structural similarity (for read-across justification see IUCLID section 13), this is also applicable for HEDTA-FeNa.
Key value for chemical safety assessment
Additional information
A key study and a supporting study are available for EDTA . Based on structural similarity (for read-across justification see IUCLID section 13), this is also applicable for HEDTA-FeNa.
For the determination of biodegradation in soil, non-standard investigations under various conditions show that EDTA can be biodegraded in soil under aerobic conditions. The rate of EDTA degradation was determined in three natural soils after 20 days of exposure. 14% of a 2 mmol/kg EDTA treatment (equivalent to 584 mg/kg soil) was degraded in the three used soils under test conditions (Wen, 2009). Degradation in soil was also found in studies by Tiedje (1975, 1977).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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