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EC number: 603-491-5 | CAS number: 131513-00-3
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The degree of biodegradation was 96 ± 6% TIC/TOC after an exposure period of 19 days. The substance is thus readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Key study:
The objective of the study was to assess the ready biodegradability of the test substance by measurement of the total inorganic Carbon (TIC) formed by mineralization of the organic Carbon of the test compound. The study is based on the OECD Guideline 310 (Ready Biodegradability - CO2 in Sealed Vessels (Headspace Test)). Since the degree of biodegradation reached 96 ± 6% TIC/TOC after an exposure period of 19 days the substance is considered as readily biodegradable.
Supporting studies
The aim of this supporting study was to determine the chemical oxygen demand according to DIN 38409 Part 41. The COD was 1.987 mg O2/g test material.
In the second supporting study the biodegradability was measured by using a closed respirometer according to OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test) and ISO DIS 9408 (Ultimate Aerobic Biodegradability - Method by Determining the Oxygen Demand in a Closed Respirometer). The degree of biodegradation is 59 % after 28 days. According to this result the test substance is considered to be biodegradable.
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