Registration Dossier
Registration Dossier
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EC number: 211-748-4 | CAS number: 693-33-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- In accordance with EU A1 Regulation (EC) No 440/2008, Annex, Official Journal of the European Union L142/1, melting point was measured by the Differential Scanning Calorimetry method (OECD Guidelines for The Testing of Chemicals, 102, July 27 1995).
- Deviations:
- no
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Sample: The sample was dried under a nitrogen purge to remove water prior to analysis
Chemical Name: Cetyl Betaine
Physical State liquid (30% active ingredient)
CAS # 693-33-4
EU # 211-748-4
Manufacturer Colonial
Batch # / Lot # 53841K16
Received on November 22, 2016
Tested on February 1, 2017 - Key result
- Melting / freezing pt.:
- >= 60.5 - <= 62.7 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- A freezing point was not evident in the sample. A melting point with an average onset of 334.8°K
(61.6°C) was evident on heating. There was also a very small melting point at approximately 13°C in Replicate 1 however it did not reproduce well in Replicate 2.
Reference
A freezing point was not evident in the sample. A melting point with an average onset of 334.8°K
(61.6°C) was evident on heating. There was also a very small melting point at approximately 13°C in Replicate 1 however it did not reproduce well in Replicate 2. The end of the melt was noted at around 91°C
Description of key information
DSC analysis of the material, which had been dried under nitrogen prior to analysis since it was presented as an aqueous liquid, showed a range melting temperatures. Melting occurred at 61.6°C and ended at around 91°C. A freezing point was not evident in the dried sample.
The average has been taken for this result.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 61.6 °C
Additional information
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