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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study performed under GLP. All relevant validity criteria were met.
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
other: CIPAC MT 1 (2009): Freezing Point
Deviations:
not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
inspected January 2013; signature: March 2013
Type of method:
thermal analysis
Melting / freezing pt.:
ca. 5.5 °C
Atm. press.:
>= 1 019.1 - <= 1 024.2 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: Mean melting point; with onset temperatures not deviating by more than 0.5 K in duplicate

Table 1. Results of DSC Measurements

Sample

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

1

11.42

5.21
226.63

-10 to 30 (endo)
180 to 320 (endo)

11.42

1019.1

2

10.14

5.87
226.83

-10 to 30 (endo)
180 to 340 (endo)

9.92

1024.2

Conclusions:
The melting point of the substance has been determined to be: 5.5 ±0.5 °C.
Executive summary:

The melting/freezing temperature was determined using EU Method A.1 and Differential Scanning Calorimetry. During the heating phase a distinct endothermic effect was observed in the temperature range of -10 to 30 °C in duplicate, which can be associated with the melting of the test substance. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value, the test substance has a melting point of 5.5 °C at 1019.1 to 1024.2 hPa (atmospheric pressure).

Description of key information

Mp: 5.5 ±0.5 °C at 1019.1 - 1024.2 hPa, EU Method A.1 - Thermal Analysis Method, 2015

Key value for chemical safety assessment

Additional information

Key data : EU Method A.1, 2015 : The melting/freezing temperature was determined using EU Method A.1 and Differential Scanning Calorimetry. During the heating phase a distinct endothermic effect was observed in the temperature range of -10 to 30 °C in duplicate, which can be associated with the melting of the test substance. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value, the test substance has a melting point of 5.5 °C at 1019.1 to 1024.2 hPa (atmospheric pressure).