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Physical & Chemical properties

Particle size distribution (Granulometry)

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Particle size was measured by laser diffraction using a commercial instrument, Malvern Mastersizer 2000 Laser Diffraction Analyser, according to the requirements of ISO 13320:2009. The median mass particle size was 69.913 um with a standard deviation of 1.49 um. The inhalable fraction (< 100 um) was ca. 63% and the respirable fraction (50% of fraction <4 um) was ca. 6%.

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