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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25 July 2008 to 17 November 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
thermal analysis
Remarks:
- Differential Scanning Calorimetry (DSC)
Test material information:
Composition 1
Melting / freezing pt.:
456 K
Remarks on result:
other: Mean melting temperature (mean of two samples); Atm. press.: Air (static)

Table 1: Thermographic Data

 

Thermal Event

Interpretation

Temperature

 

°C

K

Determination 1 (0.0052 g)

Endotherm

Onset of melting

183

456

Determination 2 (0.0058 g)

Endotherm

Onset of melting

183

456

Mean melting temperature: 456 K

Conclusions:
Under the conditions of the study, the melting point of the test material was determined (mean of 2 determinations) to be 456 ± 0.5 K.
Executive summary:

The melting point of the test material was investigated in study; conducted under GLP conditions and in accordance with the standardised guideline EU Method A.1., by differential scanning calorimetry.

Under the conditions of the study, the melting point of the test material was determined (mean of 2 determinations) to be 456 ± 0.5 K.

Description of key information

Melting point = 456 ± 0.5 K, EU Method A.1., Differential Scanning Calorimetry, Butler & O'Connor (2008)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
456 K

Additional information

The melting point of the test material was investigated in study; conducted under GLP conditions and in accordance with the standardised guideline EU Method A.1., by differential scanning calorimetry.

Under the conditions of the study, the melting point of the test material was determined (mean of 2 determinations) to be 456 ± 0.5 K.