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Diss Factsheets

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:
2021

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

Constituent 1
Chemical structure
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

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℃。