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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Acute data, based on international guidelines, are available for the three aquatic trophic levels: fish, invertebrates and algae.

To rainbow trout Oncorhynchus mykiss, under static condition, the 96h-LC50 value was determined at 24 mg/L. To aquatic invertebrates Daphnia magna, under static condition, the 48h-EC50 value was determined at 53 mg/L. To the freshwater green algae species Pseudokirchneriella subcapitata, under static condition, the 72h-NOEC and 72h-ErC50 values based on growth rate were 7.6 mg/L and 61 mg/L, respectively.

Among all the species tested, a toxic effect was found at the three trophic levels, and the most sensitive species was the rainbow trout.

In addition, the toxicity of TBEP to microorganisms (activated sludge) was evaluated under static condition. the 3h-EC50 value was found to be higher than 1000 mg/L and the 3h-EC10 value was calculated to be 89.6 mg/L.