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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diethylhydroxylamine (DEHA) aquatic toxicity profile has been investigated on different levels of the trophic chain: aquatic algae, aquatic invertebrates and fish. For algae and fish, no effect were observed at the highest concentration tested corresponding to 101 mg/L and 134 mg/L, respectively. Similarly, no toxic effect to micro-organisms was observed at 100 mg/L of DEHA according to a ready biodegradation screening test (OECD 301F).

Nevertheless, DEHA has been found to be toxic to daphnia with an 48h-EC50 of 8.2 mg/L (based on initial measured concentrations). Concentrations of DEHA were strongly decreased during the exposition because it was quickly converted into a nitrone oxidation product. Indeed, DEHA is known to be oxidized quickly in water by dissolved oxygen. Thus EC50 values were based on initial measured concentrations.

Additional information