Registration Dossier
Registration Dossier
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EC number: 223-646-7 | CAS number: 3999-70-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
No data on aquatic toxicity of potassium n-butylate are available. However, the test substance rapidly hydrolyses into potassium hydroxide (CAS No. 1310 -58 -3) and n-butanol (Cas No. 71 -36 -3) in the presence of water. Therefore, an ecotoxicological effect would be mediated by the two hydrolysis products. The hydrolysis products are not classified for aquatic environmental hazard according to Annex VI of the CLP regulation. Additionally, due to the use of the test substance as a intermediate, exposure to the environment is expected to be unlikely.
Conclusion on classification
As the test substance hydrolyses rapidly in contact with water, the hydrolysis products are considered to be relevant for the aquatic system. Therefore, the classification of aquatic, environmental hazard according to CLP Regulation No. 1272/2008 is derived from the two hydrolysis products potassium hydroxide (CAS No. 1310 -58 -3) and n-butanol (Cas No. 71 -36 -3).
According to the AnnexVI of the CLP regulation, the two hydrolysis products are not classified for aquatic environmental hazard. Thus, the test substance is not classified for environmental hazard.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.
