Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 of activated sludge was unaffected by 3-h exposure to tetrachlorophthalic anhydride at nominal concentrations between 100 and 10000 mg/L. An EC10 and an EC50 of >10000 mg/l were obtained in this test. The effect values relate to nominal concentrations, since no analytical monitoring was performed.

Key value for chemical safety assessment

EC50 for microorganisms:
10 000 mg/L
EC10 or NOEC for microorganisms:
10 000 mg/L

Additional information

"Should read: > 10000 mg/L"