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EC number: 223-984-5 | CAS number: 4152-09-4
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:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- N-benzylethylenediamine
- EC Number:
- 223-984-5
- EC Name:
- N-benzylethylenediamine
- Cas Number:
- 4152-09-4
- Molecular formula:
- C9H14N2
- IUPAC Name:
- N-benzylethane-1,2-diamine
- Test material form:
- liquid
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Key result
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- not determinable
- Remarks:
- No melting temperature could be detected between -135 °C and 50 °C, even with addition of aluminum oxide powder as crystallization aid and two annealing phases at -80 °C and -50 °C
- Key result
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: Glass transition was found at -93 °C
Any other information on results incl. tables
Results in detail
Melting temperature
No melting temperature could be detected between -135 °C and 50 °C, even with addition of aluminum oxide powder as crystallization aid and two annealing phases at -80 °C and -50 °C (determination Test 2).
A glass transition was found at -93 °C (Test 1 and determination A).
Determination |
Glass transition temperature [°C] |
Test 1 |
-93.0 |
A |
-93.0 |
Mean value |
-93 |
The glass transition was measured with a heating rate of 20 K/min according to DIN EN ISO 11357-2.
Observed thermal processes
In order to survey the thermal behavior of the test item a preliminary TG/DSC-Test (non-GLP) was run up to 600 °C.
A decreasing TG-signal starting at about 30 °C with a total weight loss at 220 °C showed the vaporization of the test item.
Applicant's summary and conclusion
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