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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
In-house method based similar to EU Method A.2 (Siwoloboff method).
Principles of method if other than guideline:
Melting point is defined as the temperature at which a substance changes from the solid to the liquid state. During this transformation, most substances are changing their optical characteristics. Using this method the samples are scanned by a light source. Photocells, sensitive to the changes of light transparency of the samples during the melting process, will register the resulting indications on the control unit. The Melting Point M-565 is an instrument for automatic and visual (manual) determination of melting point, melting range, and boiling point at ambient temperatures +10 °C up to 400 °C. The melting point of three samples can be determined at the same time. The boiling point can be determined for one sample at a time. Samples can be observed through the lens or on the color display.
GLP compliance:
not specified
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
173 °C
Atm. press.:
1 atm
Conclusions:
The boiling point of alpha-Terpinene was determined used in-house methods according to the Siwoloboff method. The boiling point was determined to be 173 °C.
Executive summary:

The boiling point of alpha-terpinene was determined used in-house methods according to the Siwoloboff method. The boiling point was determined to be 173 °C.

Description of key information

Key study: Test method similar to EU Method A.2, Siwoloboff method. The boiling point was determined to be 173 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
173 °C

Additional information

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