Registration Dossier
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EC number: 239-183-9 | CAS number: 15123-80-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (48h) > 100 mg/L (nominal) for Daphnia magna (OECD 202)
measured concentrations after 48 h: 3.96 mg Mo/L, 0.038 mg Al/L
Key value for chemical safety assessment
Additional information
In a GLP guideline study by Muckle (2013) conducted according to OECD 202, Daphnia magna were exposed to a nominal concentration of 100 mg/L in a static limit test. One day before the start of the test, a filtered test solution was prepared (24 h shaking, 0.45 µm filter).
At the beginning and at the end of the test, the content of molybdenum and aluminium as components of the test item (10.1% Al and 53.9% Mo) was measured using a validated AAS-method. After 48 h, 3.96 mg Mo/L and 0.038 mg Al/L was determined. The measured concentration of both elements showed sufficient stability under test condition (100% recovery for Mo and 93% recovery for Al after 48 hours). No mortalities or any abnormal behaviour were observed. Thus, the 96h-LC50 and NOEC were determined to be >100 mg/L and 100 mg/L, respectively, based on nominal 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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