Registration Dossier
Registration Dossier
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EC number: 232-460-5 | CAS number: 8046-22-8 Extractives and their physically modified derivatives. It consists primarily of resins, essential oils, and usually cinnamic and benzoic acids. (Dipteryx odorata).
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 5/17/2016
- 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)
- GLP compliance:
- no
- Type of method:
- other: Extrapolation of Experimental data, vapor pressure versus temperature, following the Antoine Equation.
- Key result
- Boiling pt.:
- 255.4 °C
- Atm. press.:
- 101 325 Pa
- Decomposition:
- no
- Conclusions:
- The boiling point of Tonka bean concrete 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 255.4°C at atmospheric pressure (101325 Pa).
- Executive summary:
The freezing point of Tonka bean concrete was determined to be 255.4°C according to OECD TG 103 the Differential Scanning Calorimetry method.
Reference
Experimental measurements 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 (13.3 Pa). 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 (101325 Pa, atmospheric pressure).
Description of key information
The boiling point of Tonka bean concrete was determined to be 255.4°C according to OECD TG 103 the Differential Scanning Calorimetry method.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 255.4 °C
Additional information
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