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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

Endpoint 001:

Magnesium fluorosilicate was found to cause no toxic effects to Zebrafish after 96 hours when tested with the pH adjusted limit concentration of 100 mg/L.

Endpoint 002:

The acute toxicity of disodium hexafluorosilicate to fish was determined according to OECD-Guideline for Testing of Chemicals No. 203.A static test was conducted with five nominal concentrations of 6.25 – 12.5 – 25 – 50 – 100 mg/L. Duration of the test was 96 h.

Test results are:

LC50= 37.5 mg/l

LC100= 50 mg/l

LC0= 25 mg/l

NOEC= 25 mg/l