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Boiling point

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Reference
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:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
31 May 2008
Deviations:
no
Qualifier:
according to
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

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.

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.

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