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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 202-849-4 | CAS number: 100-41-4
- 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
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Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ethylbenzene was evaluated for biodegradation, as per procedures laid out in the ISO 14593 - CO2 Headspace Test. The test conditions were equivalent to the OECD 301 B: CO2 Evolution (Modified Sturm Test). Ethylbenzeneshowed 79% degradation in this study within the 10 day window and is therefore considered "readily biodegradable".
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Ethylbenzene was evaluated for biodegradation, as per procedures laid out in the ISO 14593 - CO2 Headspace Test. The test conditions were equivalent to the OECD 310: (CO2 in sealed vessels [Headspace Test])(BASF AG, 2003). The kinetics of ethylbenzene at the end of 28 days revealed levels of up to 79% biodegradation based on the mineralization of the test material.
This level of biodegradation was reached within the prescribed 10-day window. The 10-day window for ethylbenzene started on day 2 and ended on day 12 where biodegradation reached approximately 66% which exceeded 60% criteria for CO2production. Thus, ethylbenzene was classified as readily biodegradable.
Additional supporting studies demonstrated that ethylbenzene was also inherently biodegradable based upon the OECD Guideline 302 C (Inherent Biodegradability: Modified MITI Test (II)(Chemicals Inspection and Testing Institute, 1972). Finally there were numerous supporting studies available in the scientific peer reviewed literature demonstrating that ethylbenzene degraded aerobically and anaerobically in natural groundwater environments and in domestic wastewater treatment plants.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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