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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Description of key information

The MMAD (Mass Median Aerodynamic Diameter of particles < 100µm) of the substance has a value of 5.26 µm as spherical particles.

Additional information

The particle size distribution of Imidazotriazinon was determined  according to OECD guideline 110

by scanning electron microscopy method for the sieved fraction (< 100 µm) and presented on the basis of calculated mass fractions. The median diemeter of the fraction <100 µm was 5.26 µm (spherical shape) and 4.23 µm (cubical shape). The main fraction (>100 µm) was 97.69 % of the total distribution; hence only a very limited fraction (2.31%) is considered as inhalable as defined in EN 481.