Registration Dossier
Registration Dossier
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EC number: 701-305-8 | CAS number: -
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline: NF T 20-048 AFNOR Sept.85
- Deviations:
- no
- 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.:
- 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
Reference
Description of key information
For Pitch, coal tar, high-temp., < 1% 4- to 5-membered condensed ring aromatic hydrocarbons [EC no. 701-305-8] (CTPhtht), the estimated vapour pressure at 293 K (20 °C) is estimated to be significantly below 0.00001 Pa, compared with structure-related pitch, coal tar, high temp [CAS No. 65996-93-2]: approx. 0.000006 Pa, 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
Read-across from structure-related precursor compound: The extrapolated Vp of coal-tar pitch, high temp., has been adopted as reference value for the target compound.
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