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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

The substance is a UVCB. Depending on the variation in the processes used during production of the substance and its macroscopic composition, the particle size distribution varies. Reliable particle size information on cocoa powders is publicly available on the GESTIS database ( The published information is considered to appropriately and accurately fulfil this end-point.

In addition, the particle size distributions of three representative samples of cocoa powder were measured using an optical technique (Kulkarni et al). Based on this method, median aerodynamic diameters of the 3 cocoa powders were determined to be: 12.8, 13.0 and 14 .9 microns.