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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Long-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

No NOEC available

Key value for chemical safety assessment

Additional information

Daphnia magna and Leuciscus idus were found to be the most sensitive species both revealing LC50 values >146 mg/L. Silica is found in European rivers in mean concentrations of 7.5 mg SiO2/L (Jorgensen et al. 1991). Therefore, the NOEC for fish in chronic toxicity tests is expected to be comparable to the NOEC for Daphnia and Leuciscus in the short-term tests. Further testing is not appropriate and should be avoided due to animal welfare.