Registration Dossier
Registration Dossier
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EC number: 411-760-1 | CAS number: 116633-53-5 COMMERCIAL DRAGON II
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test material was partially biodegraded at a concentration of 20 mg/l, but no biodegradation took place at 10 mg/l in a modified Sturm test (according to OECD 301B). The reference material (LAS surfactant) underwent 77% degradation indicating a viable test. Commercial Dragon has been shown to degrade on contact with sewage to form the ligand by removal of Manganese from the complex. Due to the relevance of this degradation product to the environmental risk assessment of Commercial Dragon, a number of studies have been conducted to assess its environmental profile.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Results Modified Sturm test (according to OECD 301B): under the conditions of this study the test material was partially biodegraded at a concentration of 20 mg/l, but no biodegradation took place at 10 mg/l. The reference material (LAS surfactant) underwent 77% degradation indicating a viable test.
Commercial Dragon has been shown to degrade on contact with sewage to form the ligand by removal of Manganese from the complex. Due to the relevance of this degradation product to the environmental risk assessment of Commercial Dragon, a number of studies have been conducted to assess its environmental profile. From these studies it can be shown that the environmental profile of the Ligand is similar to the parent Commercial Dragon. However, as the parent material shows a higher ecotoxicity, the risk assessment has been conducted on the parent, rather than the Ligand.
In the environmental risk assessment it was assumed that the substance is not biodegradeable.
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