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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
bioaccumulation in aquatic species: fish
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low potential to cross biological membranes

Description of key information

Taking into account (i) the rapid dissociation of sodium hydrogen sulfite and decomposition of sulfites upon dissolution in environmental solutions, including surface water and sediment porewater, and respective participation in the natural sodium and sulfur cycle, (ii) ubiquitousness of sodium and inorganic sulfur substances in surface water and sediment, and (iii) essentiality of sodium and sulfur in aquatic organisms, sodium hydrogen sulfite is expected to have a low potential for bioaccumulation in aquatic and sediment organisms.

Key value for chemical safety assessment

Additional information