Registration Dossier
Registration Dossier
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EC number: 203-650-5 | CAS number: 109-13-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Acute toxicity:
Algae is the most sensitive species to the acute toxic effects of the test item. The ErC50 value extrapolated for a solution containing 75 % t-butylperoxyisobutyrate was estimated to be 8.17 mg/L. Based on the these data, the substance (solution containing 75 % t-butylperoxyisobutyrate) has not to be classified with regard to acute environmental toxicity according to Regulation (EC) No 1272/2008 (CLP/GHS).
Chronic toxicity:
Algae are the most sensitive species to toxic long-term effects of the test item. The NOEC extrapolated for a solution containing 75 % t-butylperoxyisobutyratewas estimated to be 0.37 mg/L. As the test item is not ready biodegradable, the substance (solution containing 75 % t-butylperoxyisobutyrate) is classified as chronic aquatic cat. 2 (H411: Toxic to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP/GHS). Furthermore, classification based on acute toxicity data (extrapolated ErC50 value for a solution containing 75 % t-butylperoxyisobutyrate: 8.17 mg/L) confirms the above-mentioned classification based on chronic data (chronic aquatic cat. 2).
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