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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Administrative data

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Description of key information

According to the reference, ammonium sulfite monohydrate has a relative density of 1.41 at approx. 20°C.

Key value for chemical safety assessment

Relative density at 20C:
1.41

Additional information

For the evaluation of this endpoint data from the CRC handbook was used as key information. Informtation from an older version of the CRC handbook was used as supportive information. According to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance", handbook data are considered to be from a trusted source. These handbooks including the CRC handbook.

According to the key information, ammonium sulfite monohydrate has a relative density of 1.41 at approx. 20°C (reference stated that the density can be assumed to be measured at room temperature).