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EC number: 272-657-3 | CAS number: 68901-15-5
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Jul 2015
- 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:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 1: Freezing Point
- Version / remarks:
- 2009
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- < -100 °C
- Atm. press.:
- 1 005 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The test item has no melting point down to -100 °C.
- Executive summary:
An experimental study was conducted to determine the melting point of the test item according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995) using differential scanning calorimetry. The test item has no melting point down to -100 °C at atmospheric pressure (1005 hPa).
Reference
Results
In the thermograms of the two DSC runs a very small endothermic effect was observed in the temperature range of - 50 °C to - 40 °C, which cannot be assigned to the melting of the test item, due to its low energy of < 10 J/g.
Results of the DSC-measurements
No. | Sample weight / mg | Onset of Effect / °C | Range of effect / °C | Weight loss / mg | Atmospheric pressure / hPa |
PN9161 | 11.48 | -47.51 | -50 to -40 (endo) | 11.19 | 1004.8 |
PN9162 | 12.09 | -47.53 | -50 to -40 (endo) | 11.56 | 1004.8 |
Final Results
The test item has no melting point down to -100 °C at atmospheric pressure (1005 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
Description of key information
The test item has no melting point down to -100 °C.
Key value for chemical safety assessment
Additional information
An experimental study was conducted to determine the melting point of the test item according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995) using differential scanning calorimetry. The test item has no melting point down to -100 °C at atmospheric pressure (1005 hPa).
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