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Environmental fate & pathways

Biodegradation in soil

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biodegradation in soil: simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
Justification for type of information:
In accordance with column 2 of REACH Annex IX, further degradation testing (required in section 9.2) shall be considered if the chemical safety assessment according to Annex I indicates the need to investigate further the degradation of the substance.
The chemical safety assessment does not indicate a need for further investigation as Synthetic wollastonite is inorganic and considered to be poorly soluble.
Transformation products:

Description of key information

Synthetic wollastonite consists of amorphous and crystalline silica which when released into the environment are expected to combine indistinguishably with the soil or sediment due to their similarity with inorganic soil/sediment matter and will be subjected to natural processes under environmental conditions (cation exchange, dissolution, sedimentation).

Key value for chemical safety assessment

Additional information