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EC number: 939-719-8 | CAS number: 5502-75-0
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:
- 2011
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Justification for type of information:
- The study was conducted according to an internationally recognised method. The substance is considered to be adequately characterised. Validation applies with restrictions due to a large extrapolation of the vapour pressure at 25°C.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2008
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- dynamic method
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.022 hPa
- Conclusions:
- The vapour pressure was determined to be 0.0225 hPa (2.25 Pa) at 25 °C.
- Executive summary:
The vapour pressure of the test substance was measured according to OECD 104/EU A4 guideline, dynamic method. The result at 25°C was extrapolated from a series of measurements between 22 and 210 hPa,
corresponding to 122 to 178°C.
The vapour pressure was determined to be 0.0225 hPa (2.25 Pa) at 25 °C.
Reference
Temperature [°C] |
Pressure [hPa] |
122.0 |
22.1 |
126.5 |
27.5 |
136.4 |
41.5 |
144.0 |
60.0 |
155.0 |
89.0 |
162.5 |
119.0 |
165.0 |
137.8 |
172.0 |
168.6 |
178.1 |
210.2 |
An extrapolation is made using a non-linear regression with the measuring points according to the permutation matrix of Fremann-Carrol and by Antoine equation to obtain the vapour pressure at 25°C.
Description of key information
The vapour pressure was determined to be 0.0225 hPa (2.25 Pa) at 25 °C (extrapolation).
Key value for chemical safety assessment
- Vapour pressure:
- 0.022 hPa
- at the temperature of:
- 25 °C
Additional information
A reliable experimental study, conducted according to a recognized OECD/EU method, is available. Despite restrictions due to distant extrapolation, it is considered as a key study. The result is retained
as key data.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
