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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

Aquatic toxicity studies with substance zinc dipropionate are not available. In the assessment of substance zinc dipropionate, read-across to the assessment entities soluble zinc substances and propionate is conservatively applied since the ions of substance zinc dipropionate determine its fate and toxicity in the environment. The aquatic hazard assessment is based on the most toxic moiety, i.e. the zinc cation.

Please refer to the section for the respective assessment entity for data on the moieties. In brief:

Propionate:

The EC50 value for crustaceas (> 500 mg/L) is considerably above the limit dose of the respective guidelines and considerably above the cut value for classification an acute hazard to the aquatic environment.

Zinc:

The lowest reliable 48h-EC50 values at different solution pH and hardness range for Ceriodaphnia dubia from 0.147 to >0.53 mg Zn/L.

Key value for chemical safety assessment

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