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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Scientifically valid study shows limited inhibition of bactial growth at approximatley 50 mg/l equivalent of the hydroxide or chloride, with inhibition of specific bacterial strains starting at concentrations > 5 mg/l Cr III.

However, enhancement of growth at lower concentrations (essential element)

Citrate is assessed as biodegradable and is present in living tissues.

Key value for chemical safety assessment

EC50 for microorganisms:
50 mg/L

Additional information

Testing performed on other Cr III salts.