Registration Dossier
Registration Dossier
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EC number: 266-028-2 | CAS number: 65996-93-2 The residue from the distillation of high temperature coal tar. A black solid with an approximate softening point from 30°C to 180°C (86°F to 356°F). Composed primarily of a complex mixture of three or more membered condensed ring aromatic hydrocarbons.
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:
- comparable to guideline study
- 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
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Composite sample No. 8 Pitch (Coal tar)
- 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
- Conclusions:
- The vapour pressure of pitch, coal tar, high-temp. (CCSG composite sample 08) (CTPht) at ambient temperatures is below 5x10E-5 Pa.
Reference
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.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
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