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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:
2005-03-27 to 2007-07-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Certificate from the Swiss GLP Monitoring Authority
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
- Identity: TIC876 (T002675)
- Batch: 603T-1
- Purity: 97.76%
- Expiration date: December 19, 2007
- Storage: at room temperature (about 20°C)
Boiling pt.:
266.3 °C
Atm. press.:
99.4 kPa
Remarks on result:
other: +/- 0.1
Boiling pt.:
539.5 K
Atm. press.:
99.4 kPa
Remarks on result:
other: +/- 0.1

Heating rate of 10 deg C/min from 25 deg C to 400 deg C was used for the preliminary test.

An endothermic heat effect, the boiling, was detected at 268.7 deg C. After the experiment, the sample had lost 99.3% of its mass and a black shiny residue remained. In order to determine the boiling point more precisely, further DSC-runs were recorded between 150 deg C and 300 deg C with a heating rate of 10 deg C/min. During these runs, the boiling point was determined to be 266.4 deg C and 266.2 deg C. The sample lost 95% and 96% of its mass, respectively. In conclusion, the boiling point of TIC876 (T002675) was determined to be 266.3 deg C ± 0.1 degC which is equal to 539.5 K ± 0.1 K. The atmospheric pressure during the measurements was 99.1 kPa (preliminary test) and 99.4 kPa (main tests).

Conclusions:
The boiling point of the test substance was found to be 266.3 ± 0.1 °C, or 539.3 ± 0.1 K.

Description of key information

A GLP study was performed according to OECD guideline 103 and EU Method A.2. The boiling point of the test substance was found to be 266.3 ± 0.1 ° C, or 539.3 ± 0.1 K (K1, Weissenfeld, 2007).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
266.3 °C

Additional information

The boiling point of the test substance was found to be 266.3 ± 0.1 ° C, or 539.3 ± 0.1 K and was determined by differential scanning calorimetry.