Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Acute Toxicity: inhalation

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Administrative data

acute toxicity: inhalation
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because exposure of humans via inhalation is not likely taking into account the vapour pressure of the substance and/or the possibility of exposure to aerosols, particles or droplets of an inhalable size
Justification for type of information:
The substance is supplied in the EU in two forms - coarse powder or flakes. The average Mass Median Aerodynamic Diameter (MMAD) of a representative sample of the coarse grade was 339.301 μm, whilst the average MMAD of the flake grade was 572.394 μm. As the MMAD is > 100 μm, exposure via the inhalation route is unlikely and hence testing by the inhalation route is not considered to be appropriate, in accordance with REGULATION (EC) No 1907/2006 Annex VIII, Section 8.5.2, Column 2.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion