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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

Urea is not toxic to fish. H2O2 showed lethal effects at lower concentrations. The LD50 was determined to be 37.4 mg/L.

Short-term toxicity to aquatic invertebrates

The LD50 based on the toxic effects of H2O2 was determined to be 5.6 mg/L.

Toxicity to aquatic algae

The toxicity threshold (NOEC) of the H2O2 was determined to be between 6.8 and 10.2 mg/L.

Toxicity to microorganisms

The EC10 of H2O2 was determined to be 11 mg/L.

Additional information