Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Diethyl sulphate rapidly hydrolyses in water at the pH of biodegradation screening tests to form ethanol and sulphuric acid. The hydrolysis half-life is approximately 1.7 hours. Therefore, diethyl sulphate cannot be tested over a 28-day period and, indeed, will not survive the 10-day window. Degradation of the test substance will be uniquely abiotic, i.e., hydrolysis (see 5.1.2)

Ethanol, however, is readily biodegradable (Price, 1974; CERI, 2004; Birch, 1991) and sulphuric acid is inorganic. Therefore, the biodegradation of diethyl sulfate is that of ethanol.

Additional information