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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: - | 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
Sediment toxicity
Administrative data
Link to relevant study record(s)
- Endpoint:
- sediment toxicity: long-term
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- See Attached Justification
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- - Software tool(s) used including version:
See Field 'Attached justification'
- Model(s) used:
See Field 'Attached justification'
- Model description: See Field 'Attached justification'
- Justification of QSAR prediction: see field 'Attached justification' - GLP compliance:
- not specified
- Specific details on test material used for the study:
- Cumulative concentrations (%) per chemical class and carbon number
Class Carbon No. Concentration (%)
MoAr C6 15.00
MoAr C7 5.23
MoAr C8 0.11
n-Olefins C5 16.55
n-Olefins C6 3.69
n-Olefins C7 0.80
n-Olefins C9 0.48
n-Olefins C10 45.93
n-Olefins C11 16.99
Total 104.77
The constituents that could fit in more than one HC block, or that did not fit in any specific block, were placed in a relavant block that presented the highest toxicity. - Test organisms (species):
- Lumbriculus variegatus
- Duration:
- 28 d
- Dose descriptor:
- other: EL10
- Effect conc.:
- 39.7 mg/kg sediment dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- reproduction
- Remarks on result:
- other: Results based on QSAR predicted value
- Validity criteria fulfilled:
- yes
- Conclusions:
- The QSAR predicted EL10 for Distillates (Petroleum), steam-cracked, dimerised (C5-12, C10-rich) was 39.7 mg/kg sediment dw.
- Executive summary:
The QSAR predicted EL10 for Distillates (Petroleum), steam-cracked, dimerised (C5-12, C10-rich) for Lumbriculus variegatus was 39.7 mg/kg sediment dw. The model used for the calculations was the PETROTOX v4.0 model. PETROTOX is a well-documented and peer reviewed model that is widely used across the chemicals industry. This substance fits within the criteria of the model and there are no reservations about the validity of the model runs. It is expected that this data is reliable with restrictions.
Reference
Description of key information
The sediment toxicity was predicted by a QSAR, the PETROTOX v4.0 computer model. PETROTOX is a well-documented and peer reviewed model that is widely used across the chemicals industry. The substances of this category fit within the criteria of the model and there are no reservations about the validity of the model runs. The predicted LL50 values for Lumbriculus variegatus was 207 mg/kg sediment dw. The predicted EL10 values for Lumbriculus variegatus was 39.7 mg/kg sediment dw.
Key value for chemical safety assessment
- EC50 or LC50 for freshwater sediment:
- 207 mg/kg sediment dw
- EC10, LC10 or NOEC for freshwater sediment:
- 39.7 mg/kg sediment dw
Additional information
Due to the lack of experimental data, the sediment toxicity was calculated by a QSAR, the PETROTOX v4.0 computer model.
Species | Substance CAS No. | LL50/EL50 (mg/kg sediment dw) | EL10 (mg/kg sediment dw) |
Lumbriculus variegatus | 68477-53-2 | 207 | 39.7 |
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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