Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 950-968-1 | CAS number: -
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The study was conducted according to an internationally recognised method, but without detailed documentation, and with technical inaccuracy (distant extrapolation). The test substance is adequately identified. Therefore validation applies with restrictions.
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 104
- Version / remarks:
- 23rd March 2006
- GLP compliance:
- no
- Type of method:
- dynamic method
- Boiling pt.:
- 301.78 °C
- Atm. press.:
- 101 325 Pa
- Executive summary:
The boiling point of the test substance was determined from the vapour pressure study, measured according to OECD104 guideline, dynamic (ebulliometer) method.
Eight measurements were recorded between 156 and 213°C. The coefficients of the non-linear Antoine's equation between VP and 1/T were calculated.
From this relationship, the extrapolated boiling point of the substance at normal atmospheric pressure was back calculated as 302°C.
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental Dates: 2 to 4 December 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognised method, with no deviation, and under GLP. The substance is adequately characterised, with isomers composition. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- Regulation (EC) No 440/2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed on 15 Nov. 2018
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- 303.8 °C
- Atm. press.:
- 101.3 kPa
- Decomposition:
- no
- Executive summary:
The boiling point of the test substance was determined, under GLP, according to OECD 103/EU A2 guideline using DSC method.
Measurements were conducted under nitrogen atmosphere, in duplicate. Onset temperature were corrected to normal atmospheric pressure. Results were consistent, so the average value was retained.
The boiling point is 303.8°C under normal atmP (101.3 kPa).
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The study was conducted according to an internationally recognised method, but without detailed documentation, and with technical inaccuracy (distant extrapolation). The test substance is adequately identified. Therefore validation applies with restrictions.
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 104
- Version / remarks:
- 23rd March 2006
- GLP compliance:
- no
- Type of method:
- dynamic method
- Boiling pt.:
- 297.95 °C
- Atm. press.:
- 101 325 Pa
- Executive summary:
The boiling point of the test substance was determined from the vapour pressure study, measured according to OECD104 guideline, dynamic (ebulliometer) method.
Eight measurements were recorded between 157 and 210°C. The coefficients of the non-linear Riedel's and Antoine's equations between VP and 1/T were calculated.
From this relationship, the extrapolated boiling point of the substance at normal atmospheric pressure was back calculated as 298°C.
Referenceopen allclose all
Temperature [°C] | Pressure [mbar] |
156 | 10.1 |
165 | 14.8 |
| 168 | 16.9 |
| 181 | 28.3 |
| 190 | 40.0 |
| 198 | 53.4 |
| 204 | 67.2 |
| 213 | 90.1 |
Normal Boiling Point = 301.78°C.
Boiling temperature was confirmed by measurement with Siwoloboff Method (301°C at 979 mbar), but no experimental details are provided.
Pre-study
Peaks assigned to the boiling of the substance was observed and measurement was stopped at 365°C.
The initial boiling point of the substance was observed at onset temperature of 302.9°C.
Main study - First Determination
Initial boiling point was observed at 302.3°C (onset temperature of the peak) and a mass loss over 80% was observed between the beginning and the end of the boiling peak.
The crucible was visually checked after the determination: By opening the crucible, no test item left in the crucible and no sign of decomposition was observed.
Atmospheric pressure: 98.5 kPa.
Main study - Second Determination
Initial boiling point was observed at 302.6°C (onset temperature of the peak) and a mass loss over 80% was observed between the beginning and the end of the boiling peak.
The crucible was visually checked after the determination: By opening the crucible, no test item left in the crucible and no sign of decomposition was observed.
Atmospheric pressure: 98.5 kPa.
The corrected values following Sidney-Young equation were determined to be 303.7°C at 101.3 kPa for the first determination and 304.0°C at 101.3 kPa for the second determination.
Temperature [°C] |
Pressure [mbar] |
157 |
10.9 |
170 |
18.7 |
| 179 | 27.4 |
| 180 | 28.4 |
| 183 | 31.7 |
| 197 | 53.8 |
| 209 | 83.5 |
| 210 | 86.5 |
Normal Boiling Point = 297.95°C.
Boiling temperature was confirmed by measurement with Siwoloboff Method (296.6°C at 973 mbar), but no experimental details are provided.
Description of key information
Experimental boiling point = 303.8°C (as corrected to normal atmP and under inert atmosphere).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 303.8 °C
Additional information
A new, fully reliable, bp experimental study was conducted on the registered substance. Therefore it is considered as the key data.
It is consistent with a new experimental VP study on the same multi-constituent substance, which allows an extrapolated back calculation of the normal bp as 302°C.
Moreover, these results are also consistent with experimental data on the analogue and major constituent alpha-Santalol: from the VP study the derived extrapolated back calculated normal bp is 298°C.
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.
