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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
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Study period:
- 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)
- Justification for type of information:
- The aquatic toxicity was estimated by a QSAR, the Petrotox computer model (v.4). This model combines a partitioning model used to calculate the aqueous concentration of hydrocarbon components with the Target Lipid Model used to calculate acute and chronic toxicity of non-polar narcotic chemicals. Petrotox computes toxicity based on the summation of the aqueous-phase concentrations of hydrocarbon block(s) that represent a hydrocarbon substance and membrane-water partition coefficients (KMW) that describe the partitioning of the hydrocarbons between the water and organism.
The other polar constituents of the substance were assessed using predicted toxicity data from ECOSAR 2.0 made available by the EPA. ECOSAR groups structurally similar organic chemicals with available experimental effect levels that are correlated with physicochemical properties in order to predict toxicity of new or untested industrial chemicals. - Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The aquatic toxicity was estimated by a QSAR, the Petrotox computer model (v.4). This model combines a partitioning model used to calculate the aqueous concentration of hydrocarbon components with the Target Lipid Model used to calculate acute and chronic toxicity of non-polar narcotic chemicals. Petrotox computes toxicity based on the summation of the aqueous-phase concentrations of hydrocarbon block(s) that represent a hydrocarbon substance and membrane-water partition coefficients (KMW) that describe the partitioning of the hydrocarbons between the water and organism.
The other polar constituents of the substance were assessed using predicted toxicity data from ECOSAR 2.0 made available by the EPA. ECOSAR groups structurally similar organic chemicals with available experimental effect levels that are correlated with physicochemical properties in order to predict toxicity of new or untested industrial chemicals. - Key result
- Duration:
- 24 h
- Dose descriptor:
- LC50
- Effect conc.:
- 1 090 mg/L
- Conc. based on:
- other: polar fraction
- Basis for effect:
- mortality
- Key result
- Duration:
- 24 h
- Dose descriptor:
- LC50
- Effect conc.:
- 11.31 mg/L
- Conc. based on:
- other: hydrocarbon fraction
- Basis for effect:
- mortality
- 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 invertebrate is predicted to be 1090 mg/L
on the basis of polar fraction and 11.31 mg/L on the basis of hydrocarbon fraction. Hence, an
LL50 of 11.31 mg/L can be considered as the acute toxicity value of Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate in
invertebrates. - 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 invertebrates for the substance was not available, QSAR modelling was used to assess the toxicity to invertebrates 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 invertebrate is predicted to be 1090 mg/L on the basis of polar fraction and 11.31 mg/L on the basis of hydrocarbon fraction. Hence, an LL50 of 11.31 mg/L can be considered as the acute toxicity value of Thermal cracking oil from blends of rubber, fuel oils and paraffin waxes, steam distillation condensate in invertebrates.
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 invertebrates 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 naphtha to invertebrate is predicted to be 1090 mg/L on the basis of polar fraction and 11.31 mg/L on the basis of hydrocarbon fraction. Hence, an LL50 of 11.31 mg/L can be considered as the acute toxicity value of naphtha in invertebrates.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 11.31 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.
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