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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

Description of key information

Experimental results performed to study the solubility of disodium hexafluorosilicate at different pH conclude that the solubility of disodium hexafluorosilicate is 6.96 g/L. Further information obtained from peer reviewed confirmed this value.

Key value for chemical safety assessment

Water solubility:
6.96 g/L
at the temperature of:
22 °C

Additional information

According to available and relevant information obtained from peer reviewed handbooks/ publications, water solubility of disodium hexafluorosilicate is 6.96 g/L.