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EC number: 500-047-1 | CAS number: 26316-40-5 1 - 4.8 moles ethoxylated and 1 - 8.5 moles propoxylated
- 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 and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
The testing could be waived in accordance with REACH Annex XI. However, ECHA has requested to demonstrate the removal efficiency in STP. Then a simulation test using activated sludge from waste water treatment plant was conducted and showed that biodegradation rate of EO PO EDA polyol was between 70 and 80 percent with a 95% confidence interval between 25 and 100 percent. As a worst-case 25% degradation was incorporated into the manufacturing scenario.
Key value for chemical safety assessment
Additional information
In accordance with REACH Annex XI, degradation simulation testing in water and/or sediment does not need to be conducted as from the chemical safety assessment it can be concluded that there is acceptable risk characterization ratio (RCR) for the aquatic compartment. Based on predicted degradation products and associated toxicity and bioaccumulation potentials, further testing is not necessary to inform ecological risk assessment or PBT assessment for this substance and associated degradation products.
However, ECHA has requested to demonstrate the removal efficiency in STP. Then a simulation test using activated sludge from waste water treatment plant was conducted: A biological oxidation model was set up at Texas Operations to demonstrate the ability of activated sludge from Terneuzen's WWTP to biologically degrade EO PO EDA Polyol. The project ran a control train and two spiked trains over a 60 day period and monitored TOC degradation as well as specific polyol degradation. The testing demonstrated average NPOC removal between 68 and 73 percent with a 95% confidence interval (CI) between 39 and 100 percent. Additionally, EO PO EDA Polyol biodegradation rate was between 70 and 80 percent for trains 2 and 3 with a 95% CI between 25 and 100 percent. The WWTP consistently demonstrates superior biological oxidation performance to that of the model in respect to NPOC removal. It can be implied that polyol removal will also be superior.
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