Registration Dossier
Registration Dossier
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EC number: 237-742-1 | CAS number: 13963-58-1
Endpoint summary
Administrative data
Description of key information
Reliable, acute aquatic toxicity studies of tripotassium hexacyanocobaltate according to OECD guidelines are available for three trophic levels: algae, invertebrates and fish indicating a low potential for toxicity with the majority of endpoints being above the OECD limit of 100 mg/L of acute toxicity tests.
- A 48-h EC50 (mobility) > 100 mg/L tripotassium hexacyanocobaltate (nominal, analytically verified) for D. magna determined in a OECD 202 key study.
- A 96-h LC50 > 100 mg/L tripotassium hexacyanocobaltate (nominal, analytically verified) was determined for D. rerio in a OECD 203 key study. The low toxic potential was confirmed confirmed for O. mykiss in a supporting study (96h-LC50 = 112.9 mg/L, nominal).
-A 72-h ErC10 and 72-h ErC50 (growth rate) of 33.35 and 87.59 mg/L tripotassium hexacyanocobaltate (nominal, analytically verified), respectively, were determined for R. subcapitata in a OECD 201 key study.
Reagrding to toxicity to aquatic microrganisms, 3-h EC10, EC50 and NOEC values were estimated with > 1000, > 100 and ≥ 1000 mg/L tripotassium hexacyanocobaltate, respectively in a key study, an activated sewage sludge respiration inhibition test according to OECD 209.
In sum, tripotassium hexacyanocobaltate appears to have a low potential for acute aquatic toxicity.
Additional information
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