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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties

Particle size distribution (Granulometry)

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Description of key information

From the experimental data obtained according to CIPAC method MT 187 and OECD guideline No. 110, it can be concluded that 86.7% of the Ursodeoxycholic acid sample presents a particle size lower than 50 μm and 4.9% of test item was found above 75 μm.

Additional information

The particle size distrubution of ursodeoxycholic acid has been analyzed according to method MT 187 and OECD guideline No. 110. The average percentile size for 10%, 50% and 90% of the sample were 1.31 µm, 14.4 µm and 57.3 µm, respectively. In the same study it can be concluded that 86.7% of the test item presents a particle size lower than 50μm and 4.9% of test item was found above 75μm.