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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

One activated sludge respiration inhibition test is available with a soluble aluminium salt. This test was performed with aluminum chloride CAS RN 7446-70-0 according to standard guideline. No effects were seen up to the highest test concentration of 1000 mg/l test material. The test substance contained 20 g Al/100 g and the test concentrations can be converted to mg/l Al. 1000 mg/l test material is equal to 200 mg/l Al. See Table # "Toxicity to aquatic micro-organisms" (above).

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
200 mg/L

Additional information

Table #: Toxicity to aquatic micro-organisms



set up

result (mg/l)


Aluminum chloride

Activated sludge, domestic