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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

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Administrative data

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Description of key information

OECD 301B (CO2 evolution test): 97% in 28 days, OECD 301E (Modified OECD screening test): 100% in 19 days, OECD 302B (Inherent biodegradability: Zahn-Wellens test): 85% in 14 days

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The ready biodegradation of Trimagnesium dicitrate is determined based on available read across data from citric acid. The substance will dissociate when in solution to the citrate anion (H7C6O7-) and the metal ion (Mg+), so exposure will be to the citrate and the metal ions separately. The available data is thus sufficient to fulfil the information requirements for this endpoint. The substance is considered readilly biodegradable.

However, the ready biodegradability of the metal ion does not need to be determined in accordance with Column 2 of REACH Annex VII, since it is inorganic.