Registration Dossier
Registration Dossier
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EC number: 700-169-7 | CAS number: 7646-67-5
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:
- 5 July 2006 to 13 July 2006
- 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
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.021 Pa
- Transition / decomposition:
- yes
- Transition temp.:
- ca. 57 °C
- Conclusions:
- The vapour pressure of HEAA was determined to be 2.1E-02 Pa at 25°C.
Reference
The last of the three runs was performed on a fresh sample, as the response at the end of run 2 was noted to decrease significantly, (this final data point was not reported). Inspection of the sample at the end of run 2 revealed that it had solidified, possibly due to polymerisation. The results of run 3, (after which it was noted that liquid test substance remained), were in good agreement with the two runs performed on the first sample.
Description of key information
The vapour pressure was determined using a vapour pressure balance.
Key value for chemical safety assessment
- Vapour pressure:
- 0.021 Pa
- at the temperature of:
- 25 °C
Additional information
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.
