Registration Dossier
Registration Dossier
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EC number: 273-727-6 | CAS number: 69012-27-7 By-product of chromium refining containing oxides of aluminum, magnesium and silicon.
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Studies (OECD SIDS evaluation 2004) on algae using excess loadings of sodium aluminium silicate showed no acute toxicity. Studies (Väntsi 2008) on algae using process waste water from Ferrochromium plant showed no acute toxicity, samples caused algae growth (inhibition-% < 0) which implicates that sample contained nutrients algae can intake. Based on these two studies it can be expected that Ferrochromium slag does not cause any toxic effects to aquatic algae.
Key value for chemical safety assessment
Additional information
No PNEC's have been calculated for Ferrochrome slag. Based on the very low solubility of constituents of Ferrochrome slag, they are not relevant for the environmental hazard assessment of Ferrochrome slag.
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