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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Description of key information

Bismuth metal as a density of 9.79 g/cm3 measured at 20°C (handbook data).

Key value for chemical safety assessment

Relative density at 20C:

Additional information

All values available for bismuth metal are for the density. The key value should be entered as the relative (specific) density of the substance. Since no reference for this calculation is explicitly stated, it can be assumed that water at 4 °C (or, more precisely, 3.98 °C, which is the temperature at which water reaches its maximum density) is the reference. The density of water is (approximately) 1 g/cm3, which makes relative density calculations particularly convenient: the density of the object only needs to be divided by 1.

For the evaluation of this endpoint data from two handbooks (CRC handbook and Merck Index) and one database (Gestis database) were used as a weight of evidence.

According to ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a, specific handbook data for physic-chemical properties are considered to be a reliable data source. Useful reference books and data compilations containing peer reviewed physico-chemical data include the Merck Index and the CRC Handbook of Chemistry and Physics.