Registration Dossier
Registration Dossier
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EC number: 219-102-3 | CAS number: 2359-15-1
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-11-06 to 2008-11-07
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-11-06 to 2008-11-07
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted 27th July 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- December 1992
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- ca. 163 °C
- Atm. press.:
- 1 015 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 165 °C
- Conclusions:
- Melting Point: 163 °C with decomposition.
- Executive summary:
The melting temperature of N,N'-methylenebis[methacrylamide] was determined by differential scanning calorimetry according to EN ISO 11357-3 (Plastics-Differential Scanning Calorimetry- Part 3 Determination of temperature and enthalpy of melting and crystallization) and EEC-Directive 92/69 EEC, Part A.2 (Methods for the determination of physico-chemical properties, A.1 „Melting temperature“, EEC Publication No. L383, December 1992). The melting point was 163 °C with decomposition.
The DSC measurements were performed twice, one run for the lower temperature range on the power compensation DSC Pyris 1 and one for the higher temperature range on the heat flux DSC, using a crucible with a perforated lid.
Interpretation of the differential scanning calorimeter curve: In the first heating cycle the DSC-curve shows an endothermic heat flow with onset at 163 °C due to melting of the sample. The transition to the liquid phase is superimposed by an exothermic process, most probably the decomposition.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- adopted 27 th July 1995)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- December 1992
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- N,N'-methylenebis[methacrylamide]
- EC Number:
- 219-102-3
- EC Name:
- N,N'-methylenebis[methacrylamide]
- Cas Number:
- 2359-15-1
- Molecular formula:
- C9H14N2O2
- IUPAC Name:
- N,N'-methylenebis(2-methylacrylamide)
- Test material form:
- solid
Constituent 1
Results and discussion
Boiling point
- Key result
- Atm. press.:
- 1 015 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 165 °C
- Remarks on result:
- not determinable
- Remarks:
- No boiling point could be detected prior to decomposition
Any other information on results incl. tables
The DSC measurements were performed twice, one run for the lower temperature range on the power compensation DSC Pyris 1 and one for the higher temperature range on the heat flux DSC, using a crucible with a perforated lid.
Interpretation of the differential scanning calorimeter curve: In the first heating cycle the DSC-curve shows an endothermic heat flow with onset at 163 °C due to melting of the sample. The transition to the liquid phase is superimposed by an exothermic process, most probably the decomposition. In the second run from room temperature to 450 °C the same behaviour as in the first run is observable. Due to the decomposition of the sample near 165 °C, no boiling point can be determined at atmospheric pressure.
Applicant's summary and conclusion
- Conclusions:
- No boiling point could be detected prior to decomposition.
- Executive summary:
The boiling temperature of N,N'-methylenebis[methacrylamide] was determined by differential scanning calorimetry according to EEC-Directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.2 "Boiling temperature", EEC Publication No. L383, December 1992. No boiling point could be detected prior to decomposition.
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