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Physical & Chemical properties

Surface tension

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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.