Registration Dossier
Registration Dossier
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: 211-669-5 | CAS number: 683-10-3
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
- Study period:
- 2017
- 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:
Chemical Name Lauryl betaine
Physical State liquid - The sample was dried under a nitrogen purge to remove water prior to analysis.
CAS # 683-10-3
EU # 211-669-5
Manufacturer Colonial Chemical
Batch/lot # 53715J16
Received on November 22, 2016
Tested on January 31, 2017 - Key result
- Melting / freezing pt.:
- >= -43.8 - <= -28.2 °C
- Decomposition:
- no
- Conclusions:
- A freezing point with an average of 245.0°K (-28.2°C) was evident in the sample. A melting point with an average onset of 229.4°K (-43.8°C) was evident on heating.
The melting point did not repeat well with a span of approximately 8°C between the replicates. This may be caused by non-homogeneity of the dried sample.
Reference
A freezing point with an average of 245.0°K (-28.2°C) was evident in the sample. A melting point with an average onset of 229.4°K (-43.8°C) was evident on heating. The melting point did not repeat well with a span of approximately 8°C between the replicates. This may be caused by non-homogeneity of the dried sample.
Description of key information
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -35.5 °C
Additional 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 of freezing / melting temperatures. Freezing occurred at -28C and re-melting occurred at -43C. The average has been taken for this result.
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.
