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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Two studies (one key and one supporting) assessed the short-term toxicity of TBHP to freshwater fish. Both studies followed the OECD 203 guideline and were performed under GLP.   The key study used P. promelas (fathead minnow) and found moderate toxicity in a 96h semi-static test. 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
29.61 mg/L

Additional information

The results of the key study show that TBHP is moderately toxicity to the fathead minnow: 96h LC50 29.61 mg/l. (The supporting study conducted using the guppy gave a comparable result). The key parameter LC50 value has been expressed in terms of dry TBHP.