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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Metal carboxylates such as strontium 2-ethylhexanoate are substances consisting of a metal cation and a carboxylic acid anion. Based on the solubility of strontium 2-ethylhexanoate in water, a complete dissociation resulting in strontium ions and 2-ethylhexanoate ions may be assumed under environmental conditions.

Data for strontium bioaccumulation in freshwater and seawater species is available from several studies. Strontium behaves very similar to calcium and enriches in bones or rather in hard tissues of organisms (ATSDR, Public Health Statement: Strontium; 2004). However, BCFs of hard tissues of freshwater organisms are relatively low and even lower for saltwater species. Reported tissue BAF remain below 100. Limited data on the transfer of Sr up the aquatic food chain indicates that strontium does not biomagnify. Regarding 2-ethylhexanoate, bioaccumulation is not expected based on the n-octanol/water partition coefficient (logPow <3).

Key value for chemical safety assessment

Additional information