Registration Dossier
Registration Dossier
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EC number: 692-759-5 | CAS number: 1040916-84-4
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:
- 2 013
- Report date:
- 2013
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:
- thermal analysis
Test material
- Reference substance name:
- 1,3-diethyl-1H-imidazol-3-ium acetate
- EC Number:
- 692-759-5
- Cas Number:
- 1040916-84-4
- Molecular formula:
- C7 H13 N2 . C2 H3 O2
- IUPAC Name:
- 1,3-diethyl-1H-imidazol-3-ium acetate
- Test material form:
- other: subcooled liquid
- Details on test material:
- Name of test material (as cited in study report): 1H-Imidazolium, 1,3-diethyl-, acetate (1:1)
Analytical purity: 97.4 ± 0.1 g/ 100 g (1H NMR; study no 12L00098)
Lot/batch No.: 4-5441-2379 VTA
Storage condition of test material: ambient temperature
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- 32 °C
- Atm. press.:
- 1 013 hPa
Any other information on results incl. tables
Results in detail:
Melting temperature
The test item shows a melting temperature at 32°C peak temperature, if it has been cooled down to temperatures well below room temperature.
Determination |
Higher Peaktemperature [°C] |
|
A |
31.6 |
|
C |
32.4 |
|
Mean value |
32 |
|
The estimated accuracy is±1°C.
Observed thermic processes:
A glass transition was found at -68°C in Test 1.
In Test 1 the existence of coldcrystallization (exothermal peak at about -3°C) and the endothermal peak at about 35°C demonstrates, that the test item has a melting temperature above RT despite the fact, that it is liquid as delivered. For a high crystallinity, the test item was cooled to -130°C, heated up to 0°C and annealed for 10 min. In the following measurements A and B a single endothermal peak was found and evaluated as melting temperature.
Applicant's summary and conclusion
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