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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

After micronisation:
Particle size ranging from 0.709 to 204.3 µm equivalent spherical diameter.
MMAD = 5.99 µm.
72.5 % of particles with an AD < 10 µm.

Additional information

The small particle size places the micronised substance in the "very dusty" band accoding to ECETOC-TRA v3 (in CHESAR).

This worst-case band however does not apply for exposure modelling of the following specific circumstances:

- manufacturing steps before micronisation;

- sticky dust (only a superficial layer is available to get airborne);

- downstream formulations.