Registration Dossier
Registration Dossier
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EC number: 306-764-4 | CAS number: 97404-02-9
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Reported July2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- It can be seen that there is no signal characteristic of a melting event (an endotherm) below 400°C. At temperatures above 215°C a rapid degradation process was taking place, indicated by the relatively sharp exotherm.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
- EC Number:
- 306-764-4
- EC Name:
- 2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
- Cas Number:
- 97404-02-9
- Molecular formula:
- C11H14N5.Cl
- IUPAC Name:
- 2-[(1E)-2-(4-aminophenyl)diazen-1-yl]-1,3-dimethyl-2,3-dihydro-1H-imidazol-1-ium chloride
- Test material form:
- solid: particulate/powder
- Details on test material:
- See individual study reports for purity information and CofA where applicable
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- ca. 192 °C
- Remarks on result:
- not determinable
Applicant's summary and conclusion
- Conclusions:
- The overall conclusion from this study is that the test item does not melt below 400°C, but which undergoes decomposition from approximately 192°C.
- Executive summary:
The melting point of the test substance was determined by Differential Scanning Calorimetry in accordance with EC Directive 92/69/EEC Method Al and OECD Guideline 102 (1995). A Mettler-Toledo DSC821e Differential Scanning Calorimeter.
It can be seen that there is no signal characteristic of a melting event (an endotherm) below 400°C. At temperatures above 215°C (Test 1) a rapid degradation process was taking place, indicated by the relatively sharp exotherm.
The overall conclusion from this study is that the test item does not melt below 400°C, but which undergoes decomposition from approximately 192°C.
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