Registration Dossier
Registration Dossier
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EC number: 267-499-7 | CAS number: 67874-71-9
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In the assessment of bismuth tris(2-ethylhexanoate), read-across to the assessment entities bismuth substances and 2-ethylhexanoic acid is applied since the ions of bismuth tris(2-ethylhexanoate) determine its fate and toxicity in the environment. The potential for acute toxicity of bismuth to aquatic invertebrates is low based on a 48h-EC50 (mobility) of >100 mg/L bismuth (WAF) obtained in an OECD 202 limit-test with Daphnia magna. The measured dissolved bismuth concentration was below the limit of detection (i.e. 0.0375 mg Bi/L). In another limit test, effects of Bi metal on the mobility of Daphnia magna (Neven, 1995) were not observed at 100 mg Bi/L (measured dissolved concentration was < 0.05 mg Bi/L). For 2-ethylhexanoate, the lowest EC50 identified amounts to 85.4 mg/L (48-h) based on available data from three studies using a weight of evidence approach. Thus, bismuth tris(2-ethylhexanoate) appears to have a low potential for acute toxicity to aquatic invertebrates.
Key value for chemical safety assessment
Additional information
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