Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 269-110-6 | CAS number: 68187-58-6 The residue from the distillation of thermal cracked or steam-cracked residuum and/or catalytic cracked clarified oil with a softening point from 40°C to 180°C (104°F to 356°F). Composed primarily of a complex combination of three or more membered condensed ring aromatic hydrocarbons.
- 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
![](https://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study, basic data given, acceptable for assessment, documentation of chemical analysis unclear
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Predicting petroleum phototoxicity
- Author:
- Wernersson A-S
- Year:
- 2 003
- Bibliographic source:
- Ecotoxicol. Environ. Safety, 54, 355-365 (2003)
- Reference Type:
- publication
- Title:
- Phototoxicity identification by solid phase extraction and photoinduced toxicity to Daphnia magna. .
- Author:
- Wernersson A-S, Dave G
- Year:
- 1 997
- Bibliographic source:
- Arch. Environ. Contam. Toxicol., 32, 268-273 (1997)
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 6341 (Water quality - Determination of the Inhibition of the Mobility of Daphnia magna Straus (Cladocera, Crustacea))
- Version / remarks:
- ISO 1996
- Principles of method if other than guideline:
- Comparative testing programme including 14 PAHs examined in the absence and presence of UV light (see overview on results: attached background material)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Benzo[def]chrysene
- EC Number:
- 200-028-5
- EC Name:
- Benzo[def]chrysene
- Cas Number:
- 50-32-8
- Molecular formula:
- C20H12
- IUPAC Name:
- benzo[pqr]tetraphene
- Reference substance name:
- benzo[a]pyrene / benzo[def]chrysene
- IUPAC Name:
- benzo[a]pyrene / benzo[def]chrysene
- Details on test material:
- - Name of test material (as cited in study report): benzo(a)pyrene
- Molecular formula (if other than submission substance): C20H12
- Molecular weight (if other than submission substance): 252
- Substance type: organic
- Physical state: solid
- Source: Sigma Chem. Comp.
- Analytical purity: 99 % (acc. to Wernersson, Dave 1997)
- Typical concentration in coal-tar pitch: 1.0 - 1.3 % (data from NL 2008: Coal-Tar Pitch, Annex-XV dossier )
Constituent 1
Constituent 2
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
PHYSICO-CHEMICAL PROPERTIES (data from NL 2008: Coal-Tar Pitch, Annex-XV dossier, and WHO 1998: EHC 202, if not otherwise indicated)
- Vapour pressure: 7.3*10^-7 Pa (at 25 °C)
- Water solubility: in freshwater, approx. 1.5 - 3.8 µg/L (20 - 25 °C);
soluble portion of the WSF of coal-tar pitch (loading 100 mg/L):[see 4.8: NOACK 2009_WSF, 100 mg/L nominal]
- Henry's law constant: 0.034 Pa*m3/mol (at 25 °C)
- log Pow: = 6.13 - 6.5
Sampling and analysis
- Analytical monitoring:
- not specified
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: Stock solution in acetone (no details) used to prepare an aqueous saturated stock solution
- Eluate: no
- Differential loading: no
- Sequential dilution: 1. addition of an appropriate amount of stock solution to the bottom of the beaker to prepare the highest test concentration
2. Evaporation of teh solvent at room temperature
3. Addition of dilution water and ultrasonic treatment (2x 1 min, 60 W, 20 kHz, acc. to Wernersson and Dave 1997)
4. Dilution series in sequential dilution steps (no details)
- Controls: without TS, acetone evaporated, dilution water
- Concentration of vehicle in test medium (stock solution and final test solution): none
- Evidence of undissolved material (e.g. precipitate, surface film, etc): A few water stock solution were supersaturated.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Source: in-house
- Age at study initiation: < 24 h
- Method of breeding: reconstituted water (no data, acc. to ISO 1996)
- Feeding during test no data
ACCLIMATION
- Type and amount of food: synthetic diet (no data, acc. to Dave et al. 1991)
- Feeding frequency: daily
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 24 h
Test conditions
- Hardness:
- 250 mg/L (as CaCO3)
- Test temperature:
- 21 +-1 °C
- Nominal and measured concentrations:
- no data, sequential dilution from saturated aqueous stock
- Details on test conditions:
- TEST SYSTEM
- Test vessel: Petri dish, glass, 10 cm in diameter, covered with a glass lid (acc. to Wernerson, Dave 1997)
- Type (delete if not applicable): open
- Fill volume: 50 mL
- Aeration: no
- No. of organisms per vessel: 20 (acc. to Wernerson, Dave 1997)
- No. of vessels per concentration: 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: reconstituted water
OTHER TEST CONDITIONS
- Adjustment of pH: no
- Photoperiod: 16 h light, 8 h dark
- Light intensity: no data
- UV-intensity of 370±20 µW/cm2 (simulated sun light, 295-365 nm; peak 340 nm) for 2 h and 1 h recovery in the test medium
(UV exposure without lids)
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): immobilisation
TEST CONCENTRATIONS
- Spacing factor for test concentrations: no data, probably 2 (acc. to Wernersson and Dave 1997)
- Range finding study: no data
- Reference substance (positive control):
- yes
- Remarks:
- mentioned in Wernersson and Dave 1997
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 24 h
- Dose descriptor:
- EC50
- Effect conc.:
- 59.7 µg/L
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- test material
- Basis for effect:
- mobility
- Remarks:
- in the absence of UV
- Duration:
- 24 h
- Dose descriptor:
- EC50
- Effect conc.:
- 1.16 µg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks:
- in the presence of UV (2 h)
- Results with reference substance (positive control):
- - Results with reference substance valid? yes
- EC50/LC50: 2.3 - 2.6 µg/L with and without UV (acc. to Wernersson and Dave 1997) - Reported statistics and error estimates:
- Probit analysis or moving average method for determination of the EC50 values
Applicant's summary and conclusion
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)