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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

A respiration inhibition test (Griffith Andrew W., 2012) is available which is a key study. This study showed that the 3-h EC50 was 36.4 mg/L and 3-h NOEC was 22.2 mg/L. 
A biodegradation study (Pence, 1987) is available which is a supporting study. This study showed that 39-day EC10 was 20 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
36.4 mg/L
EC10 or NOEC for microorganisms:
22.2 mg/L

Additional information

A respiration inhibition test (Griffith Andrew W., 2012) is conducted according to OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test). Key study. This study showed that the 3-h EC50 was 36.4 mg/L and 3-h NOEC was 22.2 mg/L.