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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:
From 25 January 2005 to 12 May 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP compliance
Qualifier:
according to guideline
Guideline:
other: ASTM E537-86
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
(2 December 2002)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
PROCEDURE
- Sample:
Aliquots (0.0056 g and 0.0066 g) of test material were placed in aluminium crucibles, which had been
scratched with a needle to aid crystallisation.
- Analysis:
The DSC parameters were as follows:
Calorimeter: Mettler Toledo DSC822e
ThermoHaake Cooler EK45/MT
Temperature program:
* initial: 25.0°C
* rate: 20.0°C/min
* final: 400.0°C
Atmosphere: air (static)

The temperature accuracy of the DSC was assessed using an indium reference standard (purity*99.999%). The melting temperature was determined to be 156.7°C and within the defined tolerance (156.6 ± 0.5°C). The DSC was therefore considered acceptable for use.

- Calculation:
Measured temperatures were converted from °C to K using the following equation:
T = t + 273.15
where T = temperature (K) and t = temperature (°C)
Key result
Boiling pt.:
211.61 °C
Atm. press.:
101.92 kPa

Table 1: Thermographic Data - Determination 1

Thermal Event

Interpretation

Temperature

°C

K

Endotherm

Boiling temperature

211.61

485

Atmospheric pressure: 101.92 kPa

Table 2: Thermographic Data - Determination 2

Thermal Event

Interpretation

Temperature

°C

K

Endotherm

Boiling temperature

211.61

485

Atmospheric pressure: 101.92 kPa

Mean boiling temperature: 485 ± 0.5 K

Conclusions:
The boiling temperature of the test material has been determined to be 485 ± 0.5 Kat 101.92 kPa.
Executive summary:

The determination of the boiling point of Monofluoroethylene carbonate was performed by differential scanning calorimetry (DSC) according to ASTM E537 -86, OECD Guideline n°103 and EU Method A.2, under GLP conditions. The result was: 211.61°C at 101.92 kPa.

Description of key information

The boiling temperature of the test material has been determined to be 485 ± 0.5 K at 101.92 kPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
211.61 °C

Additional information