Registration Dossier
Registration Dossier
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EC number: 275-085-2 | CAS number: 70983-43-6
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 June 2017 - 14 September 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- from 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- EC Number:
- 275-085-2
- EC Name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- Cas Number:
- 70983-43-6
- Molecular formula:
- see structural formula below, for n=4 C13H24N2O3 HO.Na
- IUPAC Name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- Test material form:
- liquid
- Remarks:
- oily liquid
- Details on test material:
- Batch No.: 54542L16
Storage at room temperature, protected from light.
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Atm. press.:
- >= 1 002 - <= 1 016 hPa
- Remarks on result:
- other: The test item has no melting point
Any other information on results incl. tables
During the cooling phase down to -100°C no thermal effect could be observed. The endothermic effect during the heating pahse in the temperature range of -80°C to -60°C, cannot be clearly assigned to the melting of the test item due to the very low. The second endothermic effect was observed in the temperature range of 40 to 220 °C, which can be assigned to the boiling of the test item.
| No. | Sample weight (mg) | Onset of effect (°C) | Range of effect (°C) | Weight loss (mg) | Atmospheric pressure (hPa) |
| 1 | 13.94 | -72.28 80.48 |
-80 to -60 (endo) 40 to 220 (endo) |
13.51 | 1001.9 |
| 2 | 20.32 | -73.83 76.40 |
210 to 260 (endo) 40 to 220 (endo) |
19.64 | 1016 |
Applicant's summary and conclusion
- Conclusions:
- The test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no. 70983-43-6) showed a phase transformation in the temperature range of -80 to -60°C. It has no melting point at atmospheric pressure (1002 - 1016 hPa), as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
- Executive summary:
The test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no. 70983-43-6) showed a phase transformation in the temperature range of -80 to -60°C. It has no melting point at atmospheric pressure (1002 - 1016 hPa), as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
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