Registration Dossier
Registration Dossier
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EC number: 216-732-0 | CAS number: 1655-29-4
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
Description of key information
The MMAD (Mass Median Aerodynamic Diameter < 100µm) has a value of 50.01 µm as spherical particles.
Additional information
According to OECD guideline 110 the particle size distribution of disodium-naphthalene-1,5-disulfonate monohydratewas determined by scanning electron microscopy method for the sieved fraction (< 100 µm, 63.21 % of total sample) and presented on the basis of calculated mass fractions. The median diameter has a value of 50.01 µm as spherical particles with the main fraction of 78.79 % distributing in the range of 10 - 100 µm.
Hence the tested particles with sieved size smaller than 100 µm are mainly dominated by inhalable fractions as defined in EU 481.
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