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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
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- 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: GLP study, but limited documentation
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 991
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 985
- Report date:
- 1985
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Deviations:
- no
- Remarks:
- but adjustment to the properties of the test material (see Preparation of test solution for soluble substances)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 65996-93-2
- Cas Number:
- 65996-93-2
- IUPAC Name:
- 65996-93-2
- Reference substance name:
- Pitch, coal tar, high-temp.
- EC Number:
- 266-028-2
- EC Name:
- Pitch, coal tar, high-temp.
- IUPAC Name:
- 266-028-2
- Reference substance name:
- Pitch, coal tar, high temp
- IUPAC Name:
- Pitch, coal tar, high temp
- Details on test material:
- Source: Nippon Steel Chemical Comp.
- Name of test material (as cited in study report): Pitch (coal tar)
- Substance type: organic
- Physical state: solid
- Analytical purity: not applicable
- Volatiles 2.4 % at 270 and 15.6 % at 350 °C [Note: The fraction of volatiles was higher than in EU pitch]
- Softening point 36.5 °C (Yoshida, 1985, Annex 1, p. 17).
- Composition of test material, percentage of components (GC-analysis):
Content [mg/kg pitch] (Yoshida 1985, p. 18)
=================================
Naphthalene ca. 22500
2-Methylnaphthalene ca. 3700
1-Methylnaphthalene ca. 1600
Biphenyl ca. 1100
Acenaphthene ca. 9400
Fluorene ca. 1100
Phenanthrene
Anthracene(Phen.+ Anthr.) ca. 70600
Fluoranthene ca. 44200
Pyrene ca. 39800
Benz(a)anthracene no data
Chrysene ca. 42900
Benzo(b)fluoranthene no data
Benzo(k)fluoranthene no data
Benzo(a)pyrene no data
Indeno[1,2,3cd]pyren no data
Dibenzo[a,h]anthracene no data
Benzo[ghi]perylene no data
=================================
Constituent 1
Constituent 2
Constituent 3
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
-Direct dosing method A: Each test solution prepared separately without separation of undissolved matter (settling for 7 h);
-Direct dosing method B: Each test solution prepared separately with separation of the supernatant from not dissolved matter
but without further filtration.Stirring time was 24 h for coal-tar pitch at 25 +-2 °C.
Coal tar pitch was spread over glass plates at 50 mg/cm2, and a corresponding number of plates was used for a 24-h extraction in test medium.
Test organisms
- Test organisms (species):
- Oryzias latipes
- Details on test organisms:
- TEST ORGANISM
- Common name: Red killifish
- Source: Nakashima Fish Farm, Arao city
- Age at study initiation (mean and range, SD): no data
- Length at study initiation: mean 3.2 cm
- Weight at study initiation: mean 0.25 g
ACCLIMATION
- Acclimation period: 14 d
- Type and amount of food: no data
- Feeding frequency: no data
Study design
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
- Remarks on exposure duration:
- water renewal each 24 h
- Post exposure observation period:
- none
Test conditions
- Hardness:
- no data
- Test temperature:
- 25 ± 2°C
- pH:
- no data
- Dissolved oxygen:
- no data
- Salinity:
- no data
- Nominal and measured concentrations:
- Nominal: no data, >= 5 loadings spaced at a factor of 1.8
Analysis: The water-soluble fraction was about 0.13 - 0.07 % of the nominal amount and ranged from ca. 0.630 - 0.670 mg/L
(total of 11 substances, incl. naphthalene) at nominal 500 and 1000 mg/l, respectively (Yoshida, 1985, Tab. A17, p. 38).
----------------------------
After 24 h, ca. 50 % of the initial concentration was recovered from 1000 mg/l pitch (Yoshida 1985, p. 11 and Tab. A17, p. 38 - Details on test conditions:
- TEST SYSTEM
- Test vessel:
- Type (delete if not applicable): open, covered with aluminium foil
- Material, size, headspace, fill volume: glass vessel (29.5 x 15 cm in diameter), test volume = 5 litres
- Aeration: probably no ("sufficiently aerated" medium was taken)
- Renewal rate of test solution (frequency/flow rate): 24 h
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 1
- No. of vessels per control (replicates): 1
- Biomass loading rate: estimated 5 L/10 x0.25 g = approx. 2 L/g fish
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: well water
OTHER TEST CONDITIONS
- Adjustment of pH: no
- Photoperiod: 14 h light
- Light intensity: no data
TEST CONCENTRATIONS
- Spacing factor for test concentrations: no data
- Range finding study
- Test concentrations: no data
- Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 96 h
- Dose descriptor:
- LL50
- Effect conc.:
- > 100 - < 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks:
- 10/10 (100 %) animals died at 1000 mg/L
- Duration:
- 96 h
- Dose descriptor:
- LL0
- Effect conc.:
- ca. 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks:
- 1/10 (10 %) and 0/10 animals died (relating to Method A and B, resp.) [(see above Details on test solution)]
- Duration:
- 96 h
- Dose descriptor:
- LL100
- Effect conc.:
- 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- Exact LL50 had not be determined
- Reported statistics and error estimates:
- not applicable
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Remarks:
- Criteria for poorly soluble substances fulfilled
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