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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Administrative data

Link to relevant study record(s)

Description of key information

Range of naturally occurring material 2.5 to 3.26

Key value for chemical safety assessment

Relative density at 20C:
3

Additional information

Handbook data are available for naturally occurring forms of the submission item. These minerals belonging to the mineral group of Alunites, were found to have a measured density in the range of 2.5 to 3.26 g/cm³, while calculated values are 3.10 to 3.17 g/cm³. The value taken for assessment is the arithmetic mean of the measured extreme values, which is 3 g/cm³ or a relative density of 3 at 20 °C.