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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
long-term toxicity to aquatic invertebrates
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information

Description of key information

A long-term toxicity study in Daphnia magna has not been carried out on Synthetic Wollastonite or the read-across material Soda-ash flux calcined kieselghur. 


Water solubility tests determined that both Synthetic wollastonite and the read-across material Soda-ash flux calcined kieselghur are poorly soluble in water and the acute aquatic toxicity tests carried out on the read-across material Soda-ash flux calcined kieselghur determined that the LC50s were greater than the solubility of the substance (ie 100% v/v saturated solution). It is therefore considered scientifically unjustified to perform the study.

Key value for chemical safety assessment

Additional information