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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:
03 April 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
not specified
Type of method:
capillary method
Key result
Melting / freezing pt.:
>= 74.9 - <= 75.7 °C
Conclusions:
Under the conditions of this study the melting range of the test material was from 74.9 to 75.7 °C. The single point melting temperature was 75.3 °C.
Executive summary:

The melting point of the test material was investigated in accordance with the standardised guideline OECD 102.

A capillary tube, filled with the test material, was placed in a heated metal block. The temperature rise was adjusted to a suitable preselected linear rate. A beam of light was directed through the sample to a photocell. On melting of the sample, the intensity of the light reaching the photocell increases and a stop signal was sent to the digital indicator reading out the temperature of the heating chamber. Three runs were performed.

Under the conditions of this study the melting range of the test material was from 74.9 to 75.7 °C. The single point melting temperature was 75.3 °C.

Description of key information

Under the conditions of this study the melting range of the test material was from 74.9 to 75.7 °C. The single point melting temperature was 75.3 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
75.3 °C

Additional information

The melting point of the test material was investigated in accordance with the standardised guideline OECD 102. The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

A capillary tube, filled with the test material, was placed in a heated metal block. The temperature rise was adjusted to a suitable preselected linear rate. A beam of light was directed through the sample to a photocell. On melting of the sample, the intensity of the light reaching the photocell increases and a stop signal was sent to the digital indicator reading out the temperature of the heating chamber. Three runs were performed.

Under the conditions of this study the melting range of the test material was from 74.9 to 75.7 °C. The single point melting temperature was 75.3 °C.