Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

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:
guideline study
Remarks:
Guideline study performed under GLP. All relevant validity criteria were met.
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
other: CIPAC MT 1 (2009): Freezing Point
Deviations:
not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
inspected January 2013; signature: March 2013
Type of method:
thermal analysis
Melting / freezing pt.:
ca. -58.7 °C
Atm. press.:
1 009 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

16.21

-58.63
285.52

-70 to -50 (endo)
220 to 320 (endo)

16.21

1009.0

2

14.88

-58.81
283.32

-70 to -50 (endo)
220 to 310 (endo)

14.75

1009.0

Conclusions:
The melting point of the substance has been determined to be: -58.7 ±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 -70 to -50 °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 -58.7 °C at 1009.0 hPa (atmospheric pressure).

Description of key information

Mp: -58.7 ±0.5 °C at 1009.0 hPa, EU Method A.1 - Thermal Analysis Method, 2016

Key value for chemical safety assessment

Additional information

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 -70 to -50 °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 -58.7 °C at 1009.0 hPa (atmospheric pressure).