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Diss Factsheets
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EC number: 942-492-8 | CAS number: -
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- other: Expert assessment
- Adequacy of study:
- key study
- Study period:
- May 2021
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: An assessment was performed based on the predictive model PetroTox and for the other polar constituents, a combination of available data in literature and the use of QSAR modelling with ECOSAR (2.0)
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- An assessment was performed based on the predictive model PetroTox and for the other polar constituents, a combination of available data in literature and the use of QSAR modelling with ECOSAR (2.0)
- GLP compliance:
- no
- Key result
- Duration:
- 96 h
- Dose descriptor:
- other: LC50
- Effect conc.:
- 4.85 mg/L
- Conc. based on:
- other: hydrocarbon fraction
- Key result
- Duration:
- 96 h
- Dose descriptor:
- other: LC50
- Effect conc.:
- 30 mg/L
- Conc. based on:
- other: polar fraction
- Details on results:
- See attached expert assessment
- Conclusions:
- The predicted acute toxicity (LC50) of Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate to algae is predicted to be 30 mg/L on the
basis of polar fraction and 4.85 mg/L on the basis of hydrocarbon fraction. Hence, an LL50
of 4.85 mg/L can be considered as the acute toxicity value of the substance in algae. - Executive summary:
Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate (EC 942-492-8) is a complex UVCB consisting of a combination of different hydrocarbon constituents with a range of different molecular weights and structures. As toxicity test data to aquatic algae and cyanobacteria for the substance was not available, QSAR modelling was used to assess the toxicity to algae (Pseudokirchneriella subcapitata) for this substance.
For the hydrocarbon fraction the predictive model PetroTox, made available by CONCAWE was used, and for the other polar constituents, a combination of available data in literature and the use of QSAR modelling with ECOSAR (2.0) from the EPA was used.The predicted acute toxicity (LC50) of Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate to algae is predicted to be 30 mg/L on the basis of polar fraction and 4.85 mg/L on the basis of hydrocarbon fraction. Hence, an LL50 of 4.85 mg/L can be considered as the acute toxicity value of the substance in algae.
Reference
Description of key information
Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate (EC 942-492-8) is a complex UVCB consisting of a combination of different hydrocarbon constituents with a range of different molecular weights and structures. As toxicity test data to aquatic algae and cyanobacteria for the substance was not available, QSAR modelling was used to assess the toxicity to algae (Pseudokirchneriella subcapitata) for this substance.
The predicted acute toxicity (LC50) of naphtha to algae is predicted to be 30 mg/L on the basis of polar fraction and 4.85 mg/L on the basis of hydrocarbon fraction. Hence, an LL50 of 4.85 mg/L can be considered as the acute toxicity value of naphtha in algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 4.85 mg/L
Additional information
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.