Registration Dossier
Registration Dossier
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EC number: 293-048-9 | CAS number: 91051-00-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Fatty acids, C8-10, zinc salts:
Toxicity studies of fatty acids, C8-10, zinc salts are not available. In the assessment of environmental toxicity of fatty acids, C8-10, zinc salts, read-across to the assessment entities zinc and C8 -10 fatty acids is applied since zinc cations and fatty acid anions determine its fate and toxicity in the environment. Please refer to the respective assessment entity for further details.
C8-10 fatty acids:
The lowest acute EC50 for freshwater invertebrates, 63 mg/L, was observed for the effect of octanoic acid (C8) in a reliable, GLP-conform 48 h toxicity test with Daphnia magna conducted similar to OECD 202.
Zinc:
Key data (lowest EC50 values) are:
-for Ceriodaphnia dubia: 0.413 mg Zn/l (single value) at low pH and low hardness
-for Ceriodaphnia dubia: >0.53 mg Zn/l (single value) at low pH and high hardness
-for Ceriodaphnia dubia: 0.147 mg Zn/l (geomean value) at neutral/high pH and low hardness
-for Ceriodaphnia dubia: 0.228 mg Zn/l (geomean value) at neutral/high pH and high hardness
Key value for chemical safety assessment
Additional information
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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