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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
Endpoint summary
Administrative data
Description of key information
No experimental data is available with petro pitch. No particular irritation to skin and eye of rabbits was noted in experimental standard studies using the structure-related substance pitch, coal tar, high temp.
Key value for chemical safety assessment
Skin irritation / corrosion
Link to relevant study records
- Endpoint:
- skin irritation: in vivo
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Glp guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: Directive 83/467/EEC
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- GLP compliance:
- yes
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Harald Schriever, Kaninchenfarm, Bremerförde/Germany
- Age at study initiation: no data
- Weight at study initiation: 2.4 - 2.8 kg
- Housing: cage, single
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: >= 7 d
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 +-2 °C
- Humidity (%): 50 - 86 %
- Air changes (per hr): no data
- Photoperiod (hrs dark / hrs light): 12 / 12
- Type of coverage:
- occlusive
- Preparation of test site:
- shaved
- Vehicle:
- other: none
- Controls:
- not required
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 g
- Duration of treatment / exposure:
- 4 hour(s)
- Observation period:
- readings: 1 h, 24, 48, and 72 h after removal of the cover
- Number of animals:
- 6
- Details on study design:
- TEST SITE
- Area of exposure: 2.5 x 2.5 cm
- skin intact and scarified
REMOVAL OF TEST SUBSTANCE
- Washing (if done): luke-warm water
- Time after start of exposure: 4 h
SCORING SYSTEM: according to Draize - Irritation parameter:
- erythema score
- Basis:
- animal: 1 to 6
- Time point:
- other: 1, 24, 48, and 72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- other: score 0 in all animals at any time point both on the intact and scarified skin
- Irritation parameter:
- edema score
- Basis:
- animal: 1 to 6
- Time point:
- other: 1, 24, 48, and 72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- other: score 0 in all animals at any time point both on the intact and scarified skin
- Irritant / corrosive response data:
- There was no skin reaction over the observation time of 72 h (score 0).
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Eye irritation
Link to relevant study records
- Endpoint:
- eye irritation: in vivo
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: Directive 83/467/EEC.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- GLP compliance:
- yes
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Harald Schriever, Kaninchenfarm, Bremerförde/Germany
- Age at study initiation: no data
- Weight at study initiation: 2.4 - 2.6 kg
- Housing: cage, single
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: >= 7 d
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 +-2 °C
- Humidity (%): 50 - 86 %
- Air changes (per hr): no data
- Photoperiod (hrs dark / hrs light): 12 / 12 - Vehicle:
- other: none
- Controls:
- not required
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100 mg - Observation period (in vivo):
- 1, 24, 48, and 72 h post-application
- Number of animals or in vitro replicates:
- 6
- Details on study design:
- Comment: not rinsed
REMOVAL OF TEST SUBSTANCE
- Washing (if done): not rinsed
SCORING SYSTEM: according to Draize
TOOL USED TO ASSESS SCORE: hand-slit lamp: no data / biomicroscope: no data / fluorescein: after 24 and 72 h - Irritation parameter:
- conjunctivae score
- Basis:
- animal: #1 - #5
- Time point:
- other: 1 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 24 h
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #6
- Time point:
- other: 1 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 24h
- Irritation parameter:
- chemosis score
- Basis:
- animal: #1, #3, #4
- Time point:
- other: 1 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 24 h
- Irritation parameter:
- chemosis score
- Basis:
- animal: #2, #5, #6
- Time point:
- other: 1 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 24 h
- Irritant / corrosive response data:
- No irritation effects after 24 h (scores 0)
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
The experimental results obtained with pitch, coal tar, high-temp. are assumed to be applicable to petro pitch, too, because of their close structural similarity.
After application of coal-tar pitch to the skin of rabbits for four hours, no skin reaction was observed in any of the animals over the complete observation period.
Noticeable eye irritation could only be observed at one hour post-application. 24 hours after application, effects had disappeared.
Overall, no irritating effects of coal-tar pitch could be observed. In analogy, also petro pitch is assessed not to produce relevant irritating effects either to the skin or in the eye.
However, the possibility of skin irritation to occur in workers in the presence of sun-light should be taken into account, since photo-induced skin reaction are known from exposure to coal-tar pitch.
For respiratory irritation, no experimental data has been located. Occupational experience gives no evidence of respiratory irritation. This is in line with the results of the skin and eye irritation studies. Reason may be the low irritating potential together with the low vapour pressure of petro pitch. At elevated temperatures, exposure to vapours may produce irritating effects on the respiratory tract.
Justification for classification or non-classification
No irritating effects have been observed after exposure to pitch, coal tar, high temp. under standard test conditions. Adopting these results for pitch, petroleum, arom., classification for irritation/corrosion is not required.
Potential UV-light induced skin irritating effects (see above) are not taken into account for classification as conditions causing this effect do not correlate to standard test procedures.
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