Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information


A standard acute toxicity study with Daphnia was conducted and resulted in a 48 hour EL50 of 41 mg/L loading rate WAF, and a NOEC of 32 mg/L loading rate WAF. A standard acute toxicity study with fish was conducted with FeMn slag as a limit test at 100 mg/L loading rate WAF and showed no effects. Therefore the 96 Hour LL50 was greater than 100 mg/L loading rate WAF and the NOEC was 100 mg/L loading rate WAF. A standard study on algae resulted in 72hr ErL50 90 mg/L loading rate WAF, EyL50 = 39 mg/L loading rate WAF, NOEC = 10 mg/L loading rate WAF, whilst an 8 day chronic study on daphnia gave NOEC = 3.2 mg/L loading rate WAF.


No effects on sewage sludge were observed in a standard 3 hour study on FeMn Slag. Hence the NOEC for FeMn slag is 1000 mg/L.