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EC number: 264-705-7 | CAS number: 64147-40-6
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Based on data from substances representing constituents of castor oil, dehydrated, the acute LC50 for fish is expected to be > 100 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 100 mg/L
Additional information
Data is available for substances representative of the constituents of castor oil, dehydrated.
A study was conducted to determine the effects of castor oil in Zebra fish (Brachydanio rerio) using a static system according to the OECD Guideline 203. Fish were exposed to different concentration (0, 100 and 1000 mg/L) of the test material for 96 h. Observations were made at 0, 24, 48, 72 and 96 h for the mortality rates, abnormal symptoms in swimming behaviour, visible physiological functions and outward appearance of the test fish. Fish were considered dead if touching of the caudal peduncle produced no reaction and if no breathing movements could be observed. No analytical dose verification was conducted. Under the test conditions, the 96 h LC0 for Brachydanio rerio was found to be 1,000 mg/L and the LC50 was > 1,000 mg/L (based on nominal concentrations).
A study was also conducted to evaluate the effects of linseed oil (C16-18 and C18-unsatd.; rich in C18:2) to Zebra fish (Brachydanio rerio) according to OECD Guideline 203. Fish were exposed at 0, 100 and 1,000 mg/L of the test substance for 96 h. Observations were made at 0, 24, 48, 72 and 96 h for mortality, abnormal symptoms in swimming behaviour, visible physiological functions and outward appearance of the test fish. As for castor oil, fish were considered dead if touching of the caudal peduncle produced no reaction and if no breathing movements could be observed. No analytical dose verification was conducted. Under the test conditions, the 96 h LC0 for Brachydanio rerio was 1,000 mg/L and the LC50 was > 1,000 mg/L (based on nominal concentrations).
Adducts formed by glycerides similar to those tested above are not expected to have higher acute toxicity to fish than the individual glycerides. Their presence in castor oil, dehydrated will therefore not contribute significantly to the aquatic toxicity.
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