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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:
From 24 Nov 2015 to 08 Dec 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary method
Melting / freezing pt.:
> 42.9 - < 45.2 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: Melting range. These values are the means from two independent determinations.

Values Main Study of the melting range

Melting range

Begin

End

First determination

42.7 °C

44.9 °C

Second determination

42.5 °C

44.8 °C

The last inspection of the used thermometer showed a deviation of -0.3°C compared with the certificated reference thermometer. After calculation of the deviation (-0.3°C) of the thermometer following values were yields:

Values Main Study of the melting range

Melting range

Begin

End

First determination

43.0 °C (316.2 K)

45.2 °C (318.4 K)

Second determination

42.8 °C (316.0 K)

45.1 °C (318.3 K)

The means between both determinations give the following values for the melting range:

Melting range:                              42.9 to 45.2 °C (316.1 to 318.4 K)

Standard deviation:                     0.1 (begin); 0.1 (end)

Estimated accuracy:                    ± 0.2 °C

Conclusions:
The means between both determinations give the following values for the melting range:
Melting range: 42.9 to 45.2 °C (316.1 to 318.4 K)
Executive summary:

The determination of the melting point was performed in duplicate. In both determinations, a melting range was detected.The melting range was determined as 42.9 to 45.2 °C (316.1 to 318.4 K)

 

These values are the means from two independent determinations.

Description of key information

In a GLP study according to OECD TG 102, The melting range was determined as  42.9 to 45.2 °C (316.1 to 318.4 K)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
44 °C

Additional information

In a GLP study according to OECD TG 102, The melting range was determined as 42.9 to 45.2 °C (316.1 to 318.4 K).

These values are the means from two independent determinations.

Key value indicated is the mean value between the two range limits.