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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

MMAD (Mass Median Aerodynamic Diameter (< 100 μm) 41.99 μm as spherical particles

Additional information

According to OECD guideline 110, method B, the particle size distribution of the substance was determined by scanning electron microscopy method for the sieved fraction (< 100μm, 20.34 % of total sample) and presented on the basis of calculated mass fractions. The median diameter was 41.99 μm with the main fraction of 19.77 % distributing in the range of 4 -100μm and hence the tested particles with sieved size smaller than 100 μm are mainly dominated by inhalable fractions as defined in EU 481.


OECD Guideline 110