Registration Dossier
Registration Dossier
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EC number: 227-022-5 | CAS number: 5601-29-6
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to invertebrates: EC50 (48h) = 75 mg/l
Toxicity to aquatic plants: ErL50 (growth rate: frond number/dryweight) > 3.2 mg/L
Additional information
Justification for classification or non-classification
According to the CLP Regulation (EC n. 1272/2008), Part 4: Environmental Hazards, the substances can be classified for hazardous to the aquatic environment (fish toxicity) when the following criteria are met:
A )Acute (short-term) aquatic hazard
Category Acute 1: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) ≤ 1 mg/l
B) Long-term aquatic hazard
(iii) Substances for which adequate chronic toxicity data are not availableand the substance is not rapidly degradable and/or the experimentally determined BCF ≥ 500 (or, if absent, the log K ow ≥ 4).
Category Chronic 1: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) ≤ 1 mg/l
Category Chronic 2: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants)> 1 to ≤10 mg/l
Category Chronic 3: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) > 10 to ≤ 100 mg/l
In the toxicity test on aquatic plants no toxicity has been observed up to the limit of solubility therefore the classification is based on the data available on the Daphnia study where the EC50 value calculated after an observation period of 48 hours was 75 mg/l.
This value is below the limit for avoiding the classification (10 mg/l < Category Chronic 3 ≤ 100 mg/l).
Based on values reported above the classification as Aquatic Category Chronic 3 (H412: Harmful to aquatic life with long lasting effects) is proposed according to the CLP Regulation (EC n. 1272/2008).
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