Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- 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
Test material
- Reference substance name:
- Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
- IUPAC Name:
- Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
- Test material form:
- solid: bulk
Constituent 1
Results and discussion
Boiling point
- Key result
- Boiling pt.:
- ca. 70.4 °C
- Atm. press.:
- ca. 999.2 mBar
Applicant's summary and conclusion
- Executive summary:
The determination of the boiling point was performed via DSC (differential scanning calorimetry.
In all three determinations a sharp endothermic event was detected which can be interpreted,
based on the pre-test, as melting point.
The melting point is stated as:
70.40 ± 0.59 °C (343.55 ± 0.59 K)
The events which occurred after the melting point cannot clearly be identify. According to
the observations of the pre-test, the test item became turbid and more yellow at 248 °C
then at 251 °C signs of superheating (sizzle, plop and rising damp) were observed. After
cooling down the test item solidified as orange – yellow wax.
The main reaction was observed in a range of 359.7 to 415.44 °C. After the measurement
the test item left in the crucible was brown coloured. As the first DSC pre-test measurement
showed that besides the melting event no further reaction could be detected until 275
°C it can be believed that the boiling / decomposition process starts about this temperature.
As the observed colour change can be a sign for decomposition of the test item the
boiling point cannot be determined.
Therefore, under these circumstances the boiling point cannot be determined because
of signs of decomposition of the test item during the boiling stage in range of 359.74 to
415.44 °C (632.89 to 688.59 K).
The mean of atmospheric during the determination was 999.2 mbar.
No observations were made which might cause doubts on the validity of the study outcome.
Therefore, the result of the study is considered valid.
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.
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