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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
Study period:
2014-11-25
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The information is from a reliable non-GLP in-house study equivalent to OECD TG 103 using the Antoine equation, which is derived from the Clapeyron - Clausius equation being presented in the guideline.
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Principles of method if other than guideline:
Method: Experimental measurement of vapor pressure versus temperature data (typically 10 to 20 data points) are collected over a wide range of pressure at typically 10 °C intervals. An adiabatic still with circulation of the vapor phase is used. The material is held at various constant pressure values, each value being measured with a calibrated pressure sensor having an accuracy of 0.1 mmHg. The boiling temperature at each pressure is then measured using calibrated RTD temperature probes accurate to 0.02 °C. The reliability of this method is routinely tested with materials of known vapor pressure. The data are fitted to an Antoine Equation. The normal boiling point is the temperature corresponding to P=760 mm Hg.
GLP compliance:
no
Type of method:
other: Extrapolation of Experimental data, vapor pressure versus temperature. Following Antoine Equation
Key result
Boiling pt.:
256.5 °C
Atm. press.:
101 325 Pa
Conclusions:
The boiling point of Cyclemax was determined using a reliable non-GLP in-house study equivalent to OECD TG 103 (Antoine equation instead of Clapeyron - Clausius equation). The boiling point of the substance is 256.5 °C at atmospheric pressure (101325 Pa).
Executive summary:

The boiling point of Cyclemax is 256.5°C at atmospheric pressure (101325 Pa) determined in study equivalent to method OECD TG 103 (Antoine equation instead of Clapeyron - Clausius equation).

Description of key information

The boiling point of Cyclemax is 256.5°C at atmospheric pressure (101325 Pa) determined in study equivalent to method OECD TG 103 (Antoine equation instead of Clapeyron - Clausius equation).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
256.5 °C

Additional information