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EC number: 310-231-1 | CAS number: 140203-21-0 The distillate from the fractional distillation of high-temperature coal tar having an approximate distillation range of 280°C to 450°C (536°F to 842°F). Composed primarily of tri- and polynuclear 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
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- other: NF T 20-048 AFNOR (static method)
- Version / remarks:
- Sept.85
- GLP compliance:
- no
- Type of method:
- static method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
- Temp.:
- 25 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
- Temp.:
- 50 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- other: on composite sample: extrapolated from the Vp curve from 294 - 344 °C
- Temp.:
- 294 °C
- Vapour pressure:
- ca. 2 900 Pa
- Remarks on result:
- other: on composite sample: measured; calculated from Vp curve: 2,418 pa
- Endpoint:
- vapour pressure
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
1. HYPOTHESIS FOR THE ANALOGUE APPROACH
The target compound, Distillates (coal tar), high-temperature, heavy oils (EC no. 310-231-1; CAS no. 140203-21-0) as well as the read-across (source) compound, pitch (coal tar) [CAS No. 65996-93-2] are coal tar-borne UVCB substances consisting of a complex mixture of polycyclic aromatic hydrocarbons (PAH), predominantly of condensed four to five-ring aromatic ring systems which form a matrix that is practically insoluble in water. The GC-analytical profiles are very similar, and hence will be the physico-chemical and toxicological properties of these structure-related fractions. It is expected that the mammalian systemic and local or environmental toxicity of the target compound will not be higher than that of the read-across compound, pitch (coal tar).
2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
The read-across (source) compound, pitch (coal tar), as heavy coal-tar distillate, shows a very similar PAH-profile: This is due to the fact that the considered coal-tar pitch is the high-molecular, "heavy" RESIDUE of a sequential fractionation procedure of coal tar with the temperature increasing, among others under vacuum distillation. On the other hand, the target compound is the high-termperature re-distillate of a high-molecular, heat-treated coal-tar fraction. This is expressed also in the respective fractions of total analysable GC-volatiles which amount to approx. 10% in coal-tar pich, while the GC volatiles of the target compound sum up to a comparable percentage of 13%.
3. ANALOGUE APPROACH JUSTIFICATION
By far the major part of the highly condensed matrix of Distillates (coal tar), high-temperature, heavy oils (EC no. 310-231-1; CAS no. 140203-21-0) is supposed to be biologically unavailable, as is pitch (coal tar ), the read-across source. This means, poor water solubility as well as mammalian and aquatic toxicological profiles are supposed to closely overlap. - Reason / purpose for cross-reference:
- read-across source
- Principles of method if other than guideline:
- Read-across to preceding entry:
Source test material: Pitch (coal tar), high temperature [CAS no. 65996-93-2]
Reference: DEZA 2008 - Key result
- Temp.:
- 20 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- not measured/tested
- Remarks:
- extrapolated from Vp-curve
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- not measured/tested
- Remarks:
- extrapolated from Vp-curve
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- not measured/tested
- Remarks:
- extrapolated from Vp-curve
- Temp.:
- 294 °C
- Vapour pressure:
- ca. 2 900 Pa
- Remarks on result:
- other: on composite sample: measured; calculated from Vp curve: 2,418 pa
Referenceopen allclose all
Description of key information
The estimated vapour pressure of pitch, coal tar, high-temp. is approx. 0.000006 Pa at 293 K (20 °C), and approx. 0.000012 Pa at 298 K (25 °C), extrapolated from the Vp curve at high temperature. It is assumed that this also holds for the target compound, Distillates (coal tar), high-temperature, heavy oils (EC no. 310-231-1; CAS no. 140203-21-0).
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
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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