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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

There is no evidence for the photodegradation of ammonium sulphate, potassium sulfate or sodium sulphate. However, ammonium sulphate may be formed in atmospheric aerosols (occurrence predominantly in the fraction < 2.5µm) from reaction between ammonia and sulphuric acid (from SO2 emissions). SO2 concentrations control the ammonium sulphate formation (Scott and Cattell, 1979; Gmur, Evans and Cunningham, 1983). In aqueous solution, ammonium sulphate, potassium sulfate and sodium sulphate are all completely dissociated into their constituent ion and the sulphate anion and hydrolysis does not occur.



OECD (2005). SIDS Initial Assessment Report. Sodium sulfate, CAS No 7757-82-6. UNEP publications.

OECD (2007a). SIDS Initial Assessment Report. Ammonium sulfate, CAS No 7783-20-2. UNEP publications.

OECD (2007b). SIDS Initial Assessment Report. Potassium Sulfate, CAS No 7778-80-5. UNEP publications.