Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-10-20 to 2010-11-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method according to Siwoloboff
- Atm. press.:
- 1 013 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 65 °C
- Remarks on result:
- not determinable
- Remarks:
- No boiling point could be determined due to polymerisation including decomposition of the test item (indicated by change of colour) at approximately 65 °C.
- Conclusions:
- Due to polymerisation including decomposition of the test item at approximately 65 °C (338 K), determination of a boiling point was not possible.
No observations were made which might cause doubts on the validity of the study out-come. - Executive summary:
As the test substance is a mixture, an exact molecular weight and structural formula are not available. Thus, calculation of the boiling point was not possible. In order to get an estimate range of the boiling point, a pre-test (heating in an open tube; two independent determinations) has been performed. The main study was performed following the method of Siwoloboff (duplicate determination). No boiling point could be determined due to polymerisation including decomposition of the test item (indicated by change of colour) at approximately 65 °C (338 K).
Reference
Observations
No defined boiling point, but rather decomposition (indicated by change of colour) was observed.
The measured values are stated in the following table:
Measured values
| Polymerisation/Decomposition | Begin |
| 1st determination | 65.4°C (338.6 K) |
| 2nd determination | 65.8°C (339.0 K) |
Description of key information
As the test substance is a mixture, an exact molecular weight and structural formula are not available. Thus, calculation of the boiling point was not possible. In order to get an estimate range of the boiling point, a pre-test (heating in an open tube; two independent determinations) has been performed. The main study was performed following the method of Siwoloboff (duplicate determination). No boiling point could be determined due to polymerisation including decomposition of the test item (indicated by change of colour) at approximately 65 °C (338 K).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 65 °C
- Temperature of decomposition (state purity):
- 65 °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.
