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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

1) Due to the inorganic nature of the substance standard testing systems are not applicable.

2) In unsterilized soil, ammonium sulfate is mineralized fairly rapidly, and subsequently nitrified. Nitrification and de-nitrification processes also occur naturally in streams and rivers, as well as in many secondarysewage treatment processes (WHO, 1986,OECD 2007).

3) Ammonia from ammonium sulfate decomposition can be released from soils,especially if applied fertiliser is not covered by soil. Ammonium remaining in soil is largely adsorbed onto negatively charged clayparticles, and will undergo nitrification and denitrification as part ofthe nitrogen cycle and be taken up by plants via nitrogen fixation (WHO,1986). Sulfate can also be retained in soil, both by incorporation into organic matter (e.g. as sulfate esters of humic acids) and adsorbed to soil particles such as hydrous iron and aluminum sesquioxides (EPA, 2002).


OECD (2007). SIDS Initial Assessment Report. Ammonium Sulfate, CAS Number: 7783-20-2.

WHO (1986). Environmental Health Criteria 54. Ammonia. Published under the joint sponsorhip of the United Nations Environment Programme, the International Labour Organisation and the World Health Organization., 1986.

U.S. EPA (2002). Drinking Water Advisory: Consumer Acceptability Advice and Health Effects Analysis on Sulfate