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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

Description of key information

The melting point of Silicon Nitride is >300°C, therefore a boiling point determination has been waived.

Key value for chemical safety assessment

Additional information

The existing data shows the test substance, Silicon Nitride, has got a melting point of 1900°C. In accordance with Annex VII, Column 2 of the REACH regulation, a Boiling Point determination does not need to be conducted on substances with a melting point higher than 300°C.