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EC number: 206-616-8 | CAS number: 358-23-6
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:
- From 22 February 2016 to 12 May 2016
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Certificat No 2015/29
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- -82 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- no
- Conclusions:
- The mean melting point of the test item was -82.0 °C ± 0.5 °C at atmospheric pressure.
- Executive summary:
The melting point of trifluoromethanesulfonic anhydride was determined according to the OECD 102 guideline and under GLP conditions.
The method used was differential scanning calorimetry.
The mean melting point of two measures was -82°C at atmospheric pressure.
Reference
Two assays were performed during the test and they complied with the accuracy criterion.
Assay No. 1 :
Gas used Nitrogen
Ventilation No
Crucible used Aluminium, 120 μL, with lid
Mass of test item 11.25 mg
Program Phase 1: Cooling phase from about 20 °C to -110 °C at 10 °C/min. Isotherm at about -110 °C for 10 min
Phase 2: Heating phase from -110 °C to 30 °C at 5 °C/min. Isotherm at 30 °C for 10 min
The melting point of this assay was -81.9 °C.
Assay No. 2 :
Gas used Nitrogen
Ventilation No
Crucible used Aluminium, 120 μL, with lid
Mass of test item 16.38 mg
Program Phase 1: Cooling phase from about 20 °C to -110 °C at 10 °C/min. Isotherm at about -110 °C for 10 min
Phase 2: Heating phase from -110 °C to 30 °C at 5 °C/min. Isotherm at 30 °C for 10 min.
The melting point of this assay was -82.0 °C.
The mean melting point of the test item was -82.0 °C ± 0.5 °C.
Description of key information
One reliable key study scored as reliability 1 is available for this endpoint. The melting point of trifluoromethanesulfonic anhydride was determined by differential scanning calorimetry to be -82°C at atmospheric pressure.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -82 °C
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