Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
from 2012-07-17 to 2012-10-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
36 °C
Decomposition:
no
Sublimation:
no

Two DSC-measurements in aluminium crucibles with a hole showed an endothermic effect in the temperature range of 30 - 50 ° with an onset temperature of 35.8 °C to 36.4 °C. The onset temperatures are derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline. The maximum test temperature was 100 °C and the test item appeared melted after the tests.

 

Table 1. DSC measurement

Ident No.

Onset / °C

Temperature range / °C

Crucible

33017

36.4

30 – 55

Aluminium with a hole

33018

35.8

30 - 50

Aluminium with a hole

 

Due to the results of the DSC-measurements it was concluded that the test item has a melting point of 36 °C.

Conclusions:
The melting point of the test item was determined to be 36 °C.
Executive summary:

A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 10 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. Two DSC-measurements in aluminium crucibles with a hole showed an endothermic effect in the temperature range of 30 - 50 ° with an onset temperature of 35.8 °C to 36.4 °C. The onset temperatures are derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline. The maximum test temperature was 100 °C and the test item appeared melted after the tests. Based on the results of the DSC-measurements it was concluded that the test item has a melting point of 36 °C.

Description of key information

The melting point of the test item was determined to be 36 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
36 °C

Additional information

A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry (reference 4.2-1). The test item was weighed into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 10 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. Two DSC-measurements in aluminium crucibles with a hole showed an endothermic effect in the temperature range of 30 - 50 ° with an onset temperature of 35.8 °C to 36.4 °C. The onset temperatures are derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline. The maximum test temperature was 100 °C and the test item appeared melted after the tests. Based on the results of the DSC-measurements it was concluded that the test item has a melting point of 36 °C.