Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Due to the hydrolysable nature of disodium hexafluorosilicate, bioaccumulation cannot be assessed.

The accumulation and metabolism behaviour of the main species present in aqueous solutions have been reviewed in the Environmental Health Criteria (IPCS/WHO, 1994 and IPCS/WHO, 2002). Inorganic fluorides tend to accumulate preferentially in the skeletal and dental hard tissues of vertebrates, exoskeletons of invertebrates and cell walls of plants (Hemens & Warwick, 1972; Davison, 1983; Michel et al., 1984; Kierdorf et al., 1997; Sands et al., 1998). In addition, accumulation of fluoride is considered in the risk assessment of HF (EU, 2001).