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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Under the strict terms and conditions of OECD TG 301B the test material is considered to be readily biodegradable as the test material satisfy the 10-day window validation criterion, whereby 60% degradation must be attained within 10 days of the degradation rate exceeding 10%.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The thioglycolate is quantitatively oxidized to dithiodiglycolate and there is no other decomposition compound after 2 days.

It has also been demonstrated that dithiodiglycolate can undergo a rapid biodegradation , although some adaption of bacteria is necessary (10-day-window not fulfilled in the OECD TG 301B with the oxidation product, dithiodiglycolate).