Registration Dossier
Registration Dossier
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EC number: 273-734-4 | CAS number: 69012-34-6 By-product from open-hearth steelmaking. Consists of oxides of calcium, iron, silicon and vanadium.
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The lowest chronic NOEC, 560 µg V/L, was observed in a 14-week chronic study on the effect of NaVO3 on ephippia production by Daphnia magna (Van Der Hoeven, 1990; Klimisch 2).
Key value for chemical safety assessment
Additional information
Read-across
Slags, steelmaking, vanadium is a sparingly soluble UVCB substance that upon dissolution may release minor amounts of vanadium and insignificant amounts of other elements. Thus, regarding the environmental toxicity (if any), vanadium is the moiety of concern. Two reliable studies were identified on the chronic effect of NaVO3 on reproduction or ephippia production of Daphnia magna. No reliable data are available for the long-term toxicity of vanadium substances to other freshwater or marine invertebrates. Results are based on total dissolved V concentrations.
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