Registration Dossier
Registration Dossier
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EC number: 636-728-6 | CAS number: 24690-44-6
Melting point / freezing point
Administrative data
- 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
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: EC REGULATION No.440/2008 A.1
- Principles of method if other than guideline:
- The Melting point was determined according to “Differential scanning calorimetry (DSC)” in the COUNCIL REGULATION (EC) No 440/2008. PART A: METHODS FOR THE DETERMINATION OF PHYSICO-CHEMICAL PROPERTIES: A1. “MELTING/FREEZING TEMPERATURE”. The sample and the reference material are subjected to the same controlled temperature programme. The difference in energy input necessary to maintain identical temperatures between the sample and the reference material is recorded. When the sample undergoes a phase transition, the corresponding change of enthalpy gives a departure form the base line of the heat flow record.
- 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
Test material
- Reference substance name:
- (4R)-4-[(4S)-2-oxo-1,3-dioxolan-4-yl]-1,3-dioxolan-2-one
- EC Number:
- 636-728-6
- Cas Number:
- 24690-44-6
- Molecular formula:
- C6H6O6
- IUPAC Name:
- (4R)-4-[(4S)-2-oxo-1,3-dioxolan-4-yl]-1,3-dioxolan-2-one
- Test material form:
- solid
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- 169.5 °C
- Atm. press.:
- 100.7 kPa
Any other information on results incl. tables
The melting point of the sample was observed duing heating from 20℃ to 230℃ by DSC214 differential scanning calorimetry test.
Therefore, through the differential scanning calorimetry test, the melting point of the sample was：1）169.4℃，2）169.6℃。Average value：169.5℃。
Applicant's summary and conclusion
- Conclusions:
- Through the differential scanning calorimetry test, the melting point of the sample was：1）169.4℃，2）169.6℃。Average value：169.5℃。
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