Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

The 48h-EC50 value to Daphnia magna was 0.45 mg/L based on geometric mean measured concentrations. In the study with algae, no toxic effects were observed at saturation. Since the 48h-EC50 value to Daphnia magna is ≤ 1 mg/L, the substance needs to be classified as Acute Cat. 1 (H400) according to Regulation 1272/2008/EC (CLP; Table 4.1.0; a).

In view of only one chronic data available the chronic classification needs to be derived both from acute and chronic information and the most conservative result needs to be used.

The only available chronic information is from algae. No effects were observed up to the water solubility limit: 0.42 mg/L and therefore the substance does not need to be classified for chronic toxicity.

In this case the acute Daphnia data will result in the most conservative chronic classification: The EC50 is =<1 mg/l, the substance has a log Kow ≥ 4 (despite its ready biodegradability), which results in a Chronic Cat. 1.

Overall, it can be concluded that the substance needs to be classified for environmental hazards as Acute Cat. 1 (H400) and Chronic Cat. 1 (H410) according to Regulation 1272/2008/EC (CLP) and its amendments.