Registration Dossier
Registration Dossier
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EC number: 257-196-8 | CAS number: 51422-54-9
Endpoint summary
Administrative data
Description of key information
Additional information
With high probability acutely not harmful to aquatic organisms.
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
This aquatic toxicity assessment was based on the following data:
The acute toxicity of the test substance on Cyprinus carpio was investigated in a GLP guideline study according to EG 92/69 C.1. The LC50 value on the mortality of the organisms was determined to exceed 1000 mg/L (Hüls AG FK 1360, 1996). Therefore, the test substance is considered with high probability acutely not harmful to fish.
The acute toxicity of the test substance on Daphnia magna was investigated in a GLP guideline study according to 92/69/EWG. The EC50 value on the mobility of the organisms was determined to exceed 1000 mg/L (Hüls AG DK-678, 1996). Therefore, the test substance is considered with high probability acutely not harmful to aquatic invertebrates.
The toxicity of the test substance on Scenedesmus subspicatus was measured in a GLP guideline study according to 92/69/EEC. The EC50 value on the growth rate of the organisms was determined to exceed 1000 mg/L (Hüls AG PZ-96/03, 1996). Therefore, the test substance is considered with high probability acutely not harmful to aquatic algae.
The EC10 value of the test item on Pseudomonas putida was determined to be about 2976 mg/L in a GLP guideline study according to DIN 38412, part 8 (Hüls AG PZ-96/03, 1996). Therefore, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
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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