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EC number: 231-913-4 | CAS number: 7778-77-0
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:
- Testing was conducted between 30 September 2009 and 24 October 2009.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- From GLP certificate in report. Date of inspection: 15 September 2009 Date of Signature: 26 November 2009
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Transition / decomposition:
- no
- Conclusions:
- The vapour pressure of the test material has been determined to be 4.5 x 10-15 Pa at 25ºC.
This study is conducted according to an appropriate guideline and under the conditions of GLP and therefore the study is considered to be acceptable and to adequately satisfy both the guideline requirement and the regulatory requirement as a key study for this endpoint. - Executive summary:
The vapour pressure was determined using a vapour pressure balance withasurents being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 Vapour Pressure of CommissionRegulation (EC) No 440/2008 of 30 May 3008.
Summary of results
Run
Log10[Vp(25ºC)]
1
-14.932
2
-14.888
3
-14.043
4
-14.373
5
-14.026
6
-14.447
7
-13.712
Mean
-14.346
Vapour Pressure
4.5 x 10-15Pa
The vapour pressure of the test material has been determined to be 4.5 x 10-15Pa at 25ºC.
Reference
Results can be seen as an attachment.
Description of key information
One key study exists. This study (Walker J, 2009) was conclusive, done to a valid guideline (EU Method A.4) and the study was conducted under GLP conditions. It is therefore scientifically justified for use as a key study under Regulation (EC) No. 1907/2006.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure was determined using a vapour pressure balance with measurments being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 Vapour Pressure of CommissionRegulation (EC) No 440/2008 of 30 May 3008.
Summary of results
Run |
Log10[Vp(25ºC)] |
1 |
-14.932 |
2 |
-14.888 |
3 |
-14.043 |
4 |
-14.373 |
5 |
-14.026 |
6 |
-14.447 |
7 |
-13.712 |
Mean |
-14.346 |
Vapour Pressure |
4.5 x 10-15Pa |
The vapour pressure of the test material has been determined to be 4.5 x 10-15Pa 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.
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.
