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EC number: 287-837-7 | CAS number: 85586-35-2
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
The potential for bioaccumulation of Soybean oil, epoxidized, reaction products with methanol (CAS-No. 85586-35-2) in aquatic organisms is assumed to be low.
Key value for chemical safety assessment
Additional information
The two estimations with BCFBAF v3.01 calculate the minimum and maximum level of reaction products with methanol in Soybean oil, epoxidized:
- Soybean oil, epoxidized :
EPISuite v4.1/BCFBAFv3.01: A BCF value of 3.216 (log BCF = 0.5) was estimated on the basis of the log Kow of 14.84. Using the Arnot-Gobas method including biotransformation rates the BCF for the upper trophic level was estimated at 0.893 (log BCF = -0.049) (BASF, 2013).
- Soybean oil, epoxidized, with maximum open epoxide-rings (reaction with methanol):
EPISuite v4.1/BCFBAFv3.01: A BCF value of 104.5 (log BCF = 2.019) was estimated on the basis of the log Kow of 10.08. Using the Arnot-Gobas method including biotransformation rates the BCF for the upper trophic level was estimated at 0.8976 (log BCF = -0.047) (BASF, 2013).
CONCLUSIONS
BCF
values are in the range of 0.89 (Arnot-Gobas-method). Considering
mitigating factors like biotransformation, water solubility and
molecular size, there is low potential for bioaccumulation. In addition,
due to the low water solubility exposure of aquatic organisms to
significant amounts is unlikely. Therefore, unacceptable risks due to
possible bioaccumulation are not expected. Furthermore,
due to a molecular mass greater than 700, the test substance is not
readily taken up by fish, because of possible steric hindrance at
passage of gill membranes or cell membranes of respiratory organs
(Technical Guidance Document on Risk Assessment (TGD) Part 2 (2003),
Institute for Health and Consumer Protection, European Chemicals
Bureau). In addition, based on current knowledge, a calculated
log Kow of 10 or above is taken as an indicator of reduced
bioconcentration. (Chapter R.7C-Endpoint Specific Guidance; R7.10.3.4)
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