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EC number: 207-005-9 | CAS number: 421-50-1
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 26 September 2016 - 11 January 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP compliant
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 31 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- August 1996
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL:
- At room temperature
OTHER SPECIFICS:
- Purity/composition correction factor: No correction factor required.
- Test item hanling: No specific handling conditions required, but for practical reason the test item could be kept on ice to avoid evaporation of the material before and between performance of physico-chemical tests. - Key result
- Boiling pt.:
- 20.5 °C
- Atm. press.:
- 1 001 hPa
- Conclusions:
- The boiling point of 1,1,1-trifluoroacetone determined using DSC was 20.5°C at 1001 +/-1 hPa.
- Executive summary:
Measurement of the boiling point of 1,1,1 -trifluoroacetone was performed using DSC method according to standardised guidelines (OECD TG 103, EU A.2 and OPPTS 830.7220) under GLP conditions.
The boiling temperature of 1,1,1-trifluoroacetone determined using DSC was 20.5°C at 1001 +/-1 hPa.
Reference
Preliminary test
From the start of the study upwards the weight of the sample decreased significantly. At 22°C the sample weight had decreased by 25%. After the experiment it was observed that the test item was evaporated from the sample container.
Main study
First experiment: The extrapolated onset temperature of the peak was 20.315°C.
Second experiment: The extrapolated onset temperature of the evaporation peak was 31.352°C.
Third experiment: The extrapolated onset of the evaporation peak was 20.650°C.
A strong endothermic peak between -50°C and 50°C was observed. In all experiments, evaporation of the test item was the reason for the endothermic effect and after the experiment, the test item was evaporated from the sample container.
Description of key information
The measurement of the boiling point of 1,1,1 -trifluoroacetone was performed using DSC method according to standardised guidelines (OECD TG 103, EU A.2 and OPPTS 830.7220) under GLP conditions.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 20.5 °C
Additional information
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