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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The experimental test with ESA was designed to be compatible with Method C.7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 449/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.

The results showed that estimated half-life of the ESA at 25 or 5 °C and the pH 4, 7 or 9 was shorter than 2 minutes. At the end of every analysis, the pH of the “hydrolysed” samples had decreased to pH 2 to 3. As the test item is a cyclic organo-sulphate acid ester, the hydrolysis product was proposed to be hydroxyethyl sulphate (MW: 142.1 g/mol, smiles: OCCOS(=O)(=O)O)

In the literature it was found that the structural similar compound 1,3-propanesultone (CAS 1120-71-4) is also highly reactive and therefore rapidly destroyed by heterolysis to form 3-hydroxypropanesulphonic acid (CAS 15909-83-8), with t1/2 110 min.

Additional information