Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

In summary, the following physical and chemical properties of the substance ammonium sulfite could be identified:

- The test substance is an inorganic, colourless hygroscopic powder.

- According to the reference, ammonium sulfite monohydrate decomposes between 60 - 70°C. The substance sublimes at 150°C.

- Ammonium sulfite monohydrate has a relative density of 1.41 at approx. 20°C.

- Ammonium sulfite is highly soluble in water (642 g/L at 25°C).

- The density of ammonium sulfite is: 1.41 g/cm3.