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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Particle size distribution (Granulometry)

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Administrative data

Link to relevant study record(s)

Description of key information

Barium sulphate standard: MMAD 53.84 µm GSD 2.12 µm
Barium sulphate standard: D50 1.16 µm (Laser diffraction)
Barium sulphate fine powder: MMAD 42.25 µm GSD 3.04 µm
Barium sulphate fine powder: D50 2.6 µm (Laser diffraction)

Additional information

The measurement was not performed under previous suspension of the substance. As the fine powder agglomerates under air (humidity), the D50 of the fine quality is higher than the D50 of the standard powder.