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EC number: 209-162-9 | CAS number: 557-21-1
The key ecotoxicity values to assess the aquatic toxicity of the registered substance zinc cyanide are as follow:
- Short-term toxicity to fish:96h-LC50= 1.038 mg/L(based on measured concentrations)
- Short-term toxicity to aquatic invertebrates:48h-EC50 = 3.351 mg/L(based on measured concentrations)
- Toxicity to aquatic algae and cyanobacteria:72h-ErC50= 0.878 mg/L(based on growth rate, measured concentrations). This value represents thelowest acute E(L)C50of the dataset.
- Toxicity to microorganisms:30min-EC50= 2.3 mg/L
Based on these results, the lowest acute E(L)C50 is below 1 mg/L.
CLP Classification proposal
It is proposed to compare submission substance dataset to CLP environmental criteria laid down in CLP Regulation (including 2nd Adaptation to Technical Progress, Com Reg No 286/2011).
Acute aquatic hazard:category 1. Reasoning: lowest E(L)C50 below 1 mg/L. M-factor acute = 1 because the lowest E(L)C50 is between 0.1 and 1 mg/L
Chronic aquatic hazard:category 1. Reasoning: adequate chronic toxicity data are not available. Lowest acute E(L)C50 below 1 mg/L and the substance is regarded as not rapidly degradable.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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