Registration Dossier
Registration Dossier
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EC number: 284-510-0 | CAS number: 84929-26-0 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Commiphora myrrha, Burseraceae.
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:
- 5 October 2017 - 13 November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The study was conducted according to an internationally recognised method. Test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- 1996
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspected on June 22, August 9 and 04-06 october 2016/ Signed on 13 March 2017
- Type of method:
- method according to Siwoloboff
- Key result
- Boiling pt.:
- >= 287.9 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Conclusions:
- Using the capillary method according to EU A.2, OECD 103, OPPTS 830.722 the test Item started boiling at 287.9 °C (561.0 K) at normal pressure (101.325 kPa).
- Executive summary:
The study was performed in order to determine the boiling point of test item according to OECD 103, resp. EU A.2 guideline, using the capillary method (Siwoloboff).
The test item started boiling at 287.9 °C (561.0 K) at normal pressure (101.325 kPa).
Reference
The determination of the boiling point was performed by visual judgement using the capillary.
At about 285 °C in the preliminary tests, the number of air bubbles increased. To confirm the result obtained in the preliminary tests, the determination of the boiling point was performed three times, heating quickly up to 270 °C and afterwards slowly using a heating rate of 0.5 °C/min.
A clear normal boiling point, as defined in the guideline with a current stream of bubbles evolving from the capillary, was observed at a heating temperature of 287.9 °C (561.0 K) at 101.325 kPa.
Determination of the boiling point:
Replicate No |
Pressure (kPa) |
Temperature (°C) |
Temperature (K) |
Corrected* |
|
Temperature (°C) |
Temperature (K) |
||||
1 |
100.04 |
288.0 |
561.2 |
288.6 |
561.7 |
2 |
100.04 |
286.0 |
559.2 |
286.6 |
559.7 |
3 |
100.04 |
288.0 |
561.2 |
288.6 |
561.7 |
Mean value (n=0) |
287.3 |
560.5 |
287.9 |
561.0 |
|
* corrected by correlation factor 0.44 K/kPa (y = 0.0008x - 0.009) and barometric pressure
Description of key information
The test item started boiling at 287.9 °C (561.0 K) at normal pressure (101.325 kPa).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 287.9 °C
Additional information
A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study.
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