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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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The toxicity of polysulfide di-tert-nonyl to aquatic invertebrates has been read across from polysulfide di-tert-dodecyl. At the solubility limit of the test substance, no significant immobilization of the test organisms was recorded after 24 and 48 hours. Therefore the EC50 was determined to be >0.1 mg/L, the limit of quantification of the analytical technique.

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The toxicity of polysulfide di-tert-nonyl to aquatic invertebrates has been read across from polysulfide di-tert-dodecyl. Thiebaud (1998) is a 48 hour, static, freshwater, GLP-compliant test on Daphnia magna, follows EU Method C2. The results indicate that this substance is slightly toxic to aquatic invertebrates at the limit of solubility and the limits of analytical detection. However the level of toxicity cannot be quantified. The validity criteria of the method were not met as the stability of the substance was not checked but the study is considered suitable for use for this endpoint.