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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

EC50 48 h > 1000 mg/L when expressed in terms of loading rate (OECD 202). 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1 000 mg/L

Additional information

Methodological deficiencies in five supporting studies rendered the results unreliable. However, a modern GLP investigation found no evidence of acute toxicity to Daphnia magna and the NOEC was 1000 mg/L when expressed in terms of loading rate.

A further value of 2.38 mg/L was derived from the results of calcium analysis as surrogate for test material however this value was not reliable enough to use in hazard assessment.