Registration Dossier

Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

No studies are available; however, aquatic bioaccumulation is not expected to occur. 

Key value for chemical safety assessment

Additional information

Magnesium carbonate is an inorganic ionic solid for which an octanol/water partition coefficient cannot be reliably determined. Magnesium carbonate dissociates into the magnesium Mg2+ and carbonate CO32- ions at environmental pH. These are essential to all living organisms (flora and fauna) and their intracellular and extra-cellular concentrations are actively regulated. Bioaccumulation is therefore not expected.

Since magnesium carbonate is naturally occurring in the environment and is utilised by aquatic species where it is actively regulated, the performance of a bioaccumulation study in aquatic species is scientifically unjustified.