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Short-term toxicity to fish

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Description of key information

For the substance as such, zinc bis(2-ethylhexanoate), no aquatic toxicity studies are available. Thus, read-across to the assessment entities soluble zinc substances and 2-ethylhexanoic acid is applied since the ions of zinc bis(2-ethylhexanoate) determine its fate and toxicity in the environment.


2-ethylhexanoic acid:

For the 2-ethylhexanoic acid anion, an unbound 96-h LC50 of >100 mg/L was identified in a reliable freshwater fish study.


For zinc, the lowest reliable 48h-EC50 values for two different freshwater fish species at varying solution pH and hardness range from 0.169 to 0.78 mg Zn/L.


Thus, zinc bis(2-ethylhexanoate) has potential for short-term toxicity to marine and freshwater fish.

Key value for chemical safety assessment

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