Registration Dossier
Registration Dossier
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EC number: 209-042-6 | CAS number: 553-54-8
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
Description of key information
Two grades assessed; one 'milled' grade and one 'micronised'.
The milled non-micronised material was ca 90% > 10 µm.
The micronised had a particle size range of ca 90% in the 0.8 - 10 µm and the
Although these batches have been adequately assessed, it is apparent that different ways of handling the dried material during manufacture can lead to different particle sizes.
This endpoint is therefore not necessarily representative of all production grades from all manufacturers, and it is recommended that different supplierscheck their grades as part of quality control processes.
The two grades used in this assessment are considered extreme cases by the lead registrant that supplied the materials.
Additional information
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