Registration Dossier
Registration Dossier
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EC number: 234-744-4 | CAS number: 12030-85-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Data describing the acute toxicity of potassium niobate to aquatic organisms is based on read-across from the structural analogues niobium pentachloride and potassium chloride. Studies are available for invertebrates and algae. Effect values for the target substance potassium niobate were derived by calculating the combined effects of niobium and potassium ions upon dissolution of the test substance potassium niobate in water. Thus, the calculated EC50 (48-h) and ErC50 (72-h) for effects of substance potassium on aquatic invertebrates and freshwater algae are approximately 735 mg/L and 976 mg/L, respectively.
Data reporting the effects of potassium niobate on fish are not required according to REACH Annex VII.
Conclusion on classification
Due to the high effect values calulated for potassium niobate (see section above), the substance does not have to be classified as hazardous to the aquatic environment in accordance with Section 4.1.2.6., Annex I of Regulation 1272/2008/EC.
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.
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