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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
8.5 mg/L

Additional information

The toxicity of CAHC can be described to the pH increase due to the addition of OH-, as the calcium and aluminum concentrations are too low to explain the effects. The toxicity of CAHC is depending inthe composition of the test waters, especially the buffer capacity of the water.

Thus, in real aquatic departments the LC50 of CAHC should be much greater than 10 mg/l.