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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Surface tension

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Administrative data

Link to relevant study record(s)

Description of key information

A surface tension determination is considered unnecessary on the basis of being scientifically unjustified.

Key value for chemical safety assessment

Additional information

In accordance with Annex VII, Column 2 of the REACH Regulation, this study is only required if surface activity can be expected or predicted based on the structure, or if surface activity is a desired property of the material. Silicon nitride is an inorganic compound with low water solubility (<0.3 mg/L) in which surface activity is not expected, nor is it a desired property of the material; on thia basis a surface tension determination is not considered necessary.