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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The respiration activity of micro-organisms present in sewage effluent was not inhibited during 5 days of exposure to 10 mg substance/l in an OECD TG301D study. The NOEC = 10 mg/l

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
10 mg/L

Additional information

The inhibitory effect to the respiration of microorganisms was tested at 2 and 10 mg/l following the conditions of an OECD TG301D Closed Bottle Test under GLP. After 5 days the mineralisation of sodium benzoate was 57% of ThOD indicating that the inoculum was viable. In the presence of test material at 2 and 10 mg/l, degradation of benzoate was unaffected, which indicates that the test material was not inhibitory to the bacterial inoculum. Therefore, the test material is not considered inhibitory to the inoculum at a concentration of 10 mg/l (NOEC).