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EC number: 812-688-7 | CAS number: 73138-40-6
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Fatty acids, coco, di-and triesters with trimethylolpropane (CAS 85566-29-6) is readily biodegradable according to OECD criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Since no studies investigating the ready biodegradability of fatty acids, coco, di-and triesters with trimethylolpropane (CAS 85566-29-6) are available for this endpoint, in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5 a read across to the structurally related category members fatty acids, C16-18 (even numbered) and C16-18-unsatd. (even numbered), triesters with trimethylolpropane (CAS 68002-79-9), Fatty acids, C6-18, triesters with trimethylolpropane (CAS 91050-88-3), Fatty acids, C8-10, triesters with trimethylolpropane (CAS 91050-89-4), 2,2-bis[[(1-oxoisooctadecyl)oxy]methyl]-1,3-propanediyl bis(isooctadecanoate) (CAS 62125-22-8) and Pentaerythritol tetraoleate (CAS 19321-40-5) was conducted.
The read-across substances are representative to evaluate the biodegradation of fatty acids, coco, di-and triesters with trimethylolpropane (CAS 85566-29-6) since they have a similar structure (C18 unsatd. and branched (source) compared to C16-18 and C18 unsatd. linear and branched) and thus cover the target substance adequately.
The first study with the read-across substance fatty acids, C16-18 (even numbered) and C16-18-unsatd. (even numbered), triesters with trimethylolpropane (CAS 68002-79-9) was performed according to OECD 301F (Manometric Respirometry) with sewage effluent as inoculum (Börner, 2000). After 28 d a biodegradation of 86% (O2 consumption) was observed and the 10-day window was fulfilled. Thus, the substance is readily biodegradable according to the OECD criteria.
The second study with the read-across substance Fatty acids, C6-18, triesters with trimethylolpropane (CAS 91050-88-3) was conducted according to OECD guideline 301B using domestic activated sludge as inoculum. At test termination after 28 days the test substance was degraded by 62.9%, not fulfilling the 10-day window (Muckle, 2008). As the test substance is a mixture of constituents with different chain-lengths (UVCB), sequential (instead of concurrent) biodegradation takes place and the 10-day-window should not be considered for this UVCB substance. Thus, the test substance is readily biodegradable according to OECD criteria.
The third study with the read-across substance Fatty acids, C8-10, triesters with trimethylolpropane (CAS 91050-89-4) was conducted according to EU Method C.4-D using non-adapted effluent from a domestic sewage treatment plant as inoculum (Wierich, 2000). After 28 d the test item was degraded to 78% (O2 consumption) and the 10-day window was fulfilled. Thus, the test substance is readily biodegradable according to the OECD criteria.
The fourth study with the read-across substance 2,2-bis[[(1-oxoisooctadecyl)oxy]methyl]-1,3-propanediyl bis(isooctadecanoate) (CAS 62125-22-8) was conducted under aerobic conditions according to OECD 301B using non-adapted activated sludge as inoculum (Desmares-Koopmans, 1997). A test concentration of 15.5 – 15.6 mg/L was applied. Based on CO2 evolution a biodegradation of 66.7 – 73.3% was observed after 29 days. For substances with different chain lengths the 10-day window should not be used for the interpretation of results. It is possible that a sequential biodegradation occurred which might have resulted in a prolonged lag-Phase and therefore a slower biodegradation period, although the test substance was biodegraded in a large amount after the test duration. In this case the pass level can be applied after 28 days and therefore the test substance is considered to be readily biodegradable.
The fifth study with the read-across substance Pentaerythritol tetraoleate (CAS 19321-40-5) was conducted according to OECD 301B using non-adapted activated sludge as inoculum (Desmares-Koopmans, 1997). A test item concentration of 15.6 mg/L was applied. Based on CO2 evolution biodegradation was observed to be in the range of 71.9 to 99.8% after 28 days. Hence, the substance is determined to be readily biodegradable according to OECD criteria.
Based on the results from structurally related read-across substances (in accordance to Regulation (EC) No 1907/2006 Annex XI, 1.5) it can be concluded that fatty acids, coco, di-and triesters with trimethylolpropane (CAS 85566-29-6) is readily biodegradable according to the OECD criteria.
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