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Physical & Chemical properties

Particle size distribution (Granulometry)

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Description of key information

Fine powder, with a potential for inhalation exposure (more than 80% of particles having a diameter < 10 µm may reach the thoracic fraction), however this is limited by the tendency to aggregate into particles of MMD of ca 125 µm.

Additional information

A GLP study, conducted both with sieve and image analysis, provided non-consistent results, but these can be explained by the tendency of the substance 99422018 to aggregate.