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EC number: 700-726-4 | CAS number: 1369499-44-4
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06 Jun - 05 Aug 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 30 May, 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted 27 July1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- (5Z)-5-(2-methylpropylidene)imidazolidine-2,4-dione
- EC Number:
- 700-726-4
- Cas Number:
- 1369499-44-4
- Molecular formula:
- C7H10N2O2
- IUPAC Name:
- (5Z)-5-(2-methylpropylidene)imidazolidine-2,4-dione
- Test material form:
- solid: particulate/powder
1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 205 °C
- Decomposition:
- no
Any other information on results incl. tables
Thermal Stability (DSC measurement):
The DSC-measurements in closed glass crucibles in a closed high pressure crucibles with the test item showed two endothermic effect in the temperature range of 195 °C - 225 °C and 290 °C -330 °C, respectively.
Melting Point I Melting Range (DSC measurement):
Two measurements in aluminium crucibles with a hole showed an endothermal effect in the temperature range of 180 - 220 °C with an onset temperature of 205.14 °C and 204.89 °C, respectively.
An additional endothermal effect was observed in the temperature range of 270 - 365 °C. The onset temperature was derived from the intersection of the tangent line with the highest slope of the
endothermal peak with the baseline.
ldent-No. Onset /°C Temperature range / °C Crucible
33841 205.14 180 to 220 Aluminium with a hole
33911 204.89 180 to 215 Aluminium with a hole
The test item had melting point of 205.0 °C.
Applicant's summary and conclusion
- Conclusions:
- The test item has a melting point of 205 °C.
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