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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

AQUATIC:

A standard acute toxicity study with Daphnia was conducted as a limit test at 100 mg/l loading rate WAF and showed no effects. Therefore the 48 Hour EC50 was greater than 100 mg/l loading rate WAF, and the NOEC was 100 mg/l loading rate WAF. These results were compared to those obtained with FeMn slag (48 Hour EC50 was 41 mg/l loading rate WAF, and the NOEC was 32 mg/l loading rate WAF), and it can be noted that the FeMn slag is a worst case since it is more toxic to Daphnia. Given that the transformation/dissolution results are similar for Manganese ores, reduced and FeMn slag (86.8 µg/l after 28 days from 1mg/L loading for Manganese ores, reduced and 199.7 µg/l after 28 days from 1mg/L loading for FeMn slag), then it is considered that further aquatic toxicity results can be read-across from FeMn slag to Manganese ores, reduced (as a worst-case). 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 chronic study on Algae resulted in 72H ErC50 90 mg/l loading rate WAF, EyC50 = 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.

STP:

No effects on sewage sludge were observed in a standard 3hr study on Manganese ores, reduced (this result was read-across from FeMn Slag). Hence the NOEC for Manganese ores, reduced is 1000mg/l.