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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:
Experimental phase: 09 August 2016.
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
not specified
Remarks:
The study is not fully reported so deviations cannot be confirmed.
GLP compliance:
no
Other quality assurance:
other: The laboratory participates in the international ASTM inter-laboratory test certification scheme.
Type of method:
distillation method
Key result
Boiling pt.:
177 °C
Atm. press.:
101.2 kPa

The results of the individual runs and the mean of the runs are presented in the table below:

 Run

 Result (°C)

 1

 177

 2

 174

 3

 179

 Mean

 177

Conclusions:
The boiling point of the test substance is 177°C at 101.2 KPa.
Executive summary:

Introduction

The boiling point of the test substance was determined using a test method based on EU Method A.2 (Boiling Temperature).

 

Method

The distillation method was used. 60 ml of test substance is placed in the flask. The condenser water is turned on and heat applied by means of an electric heater at such rate that the sample is brought to its boiling point within 15 min. The sample is heat strongly until boiling is reached and then the heat input is reduced slowly until the required reflux rate is obtained. The rate of reflux is adjusted over the next 10 min period to 1 to 2 drops of reflux per second. To obtain accurate results, the specified reflux rate is observed and maintained for 2 min before reading the temperature.

Three runs are undertaken and the mean of the results assigned as the boiling point value

 

Results

 Run

 Result (°C)

 1

 177

 2

 174

 3

 179

 Mean

 177

 

Conclusion

The boiling point of the test substance is 177°C at 101.2 KPa.

Description of key information

Boiling point of the test substance.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
177 °C

Additional information