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EC number: 607-811-4 | CAS number: 25784-83-2
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:
- June 12th, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.113 Pa
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0.21 Pa
- Conclusions:
- The vapour pressure of the test item is 0.113 Pa at 20ºC and 0.210 Pa at 25ºC.
- Executive summary:
The study of the vapour pressure using effusion method was performed in accordance with the method EU A4 - Knudsen cell (GLP study).
The vapour pressure of the test item is 0.113 Pa at 20ºC and 0.210 Pa at 25ºC.
Reference
Vapour pressure of the test item at 20ºC and 25ºC was calculated on the basis of equation log (p) = f (1/t) = a-b/(t+273.15) where: p – vapour pressure in Pa, t – temperature in ºC, obtained for five measurement points: 26.7ºC, 28.9ºC, 32.5ºC, 35.9ºC and 39.0ºC.
- At 20ºC the determined vapour pressure is 1.13·10-1 Pa,
- At 25ºC the determined vapour pressure is 2.10·10-1 Pa.
Description of key information
Key study. Method according to OECD 104 and EU Method A.4 (Knudsen cell), GLP study. The vapour pressure of the test item is 0.113 Pa at 20ºC and 0.210 Pa at 25ºC.
Key value for chemical safety assessment
- Vapour pressure:
- 0.113 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test item was determined by the effusion method (Knudsen cell), according to OECD 104 and EU A.4 method (GLP study).
The vapour pressure of the test item is 0.113 Pa at 20ºC and 0.210 Pa at 25ºC.
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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