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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:
from 2021-09-17 to 2021-10-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
>= 31 - <= 44 °C
Atm. press.:
>= 1 006.5 - <= 1 008.2 hPa
Decomposition:
no
Sublimation:
no

Results of the DSC-measurement



























Sample weight / mg



Onset of Effect / °C



Range of effect / °C



Weight loss / mg



Atmospheric pressure / hPa



8.63



34.92


208.22



20 – 80 (endo)


130 – 220 (endo)



8.63



1006.5



9.25



31.10


209.05



20 – 70 (endo)


160 – 220 (endo)



9.25



1008.2



During the heating phase an endothermic effect was observed in the temperature range of 20 – 80 °C. During the boiling point verification measurement with the photocell detection method the test item was completely molten at approx. 60 °C. Therefore, this endothermic effect can be assigned to the melting of the test item. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value of 33.01 °C, the test item has a melting range of 31 – 44 °C (onset to peak of both DSC measurements).

Conclusions:
The melting range of the test item was determined to 31 to 44 °C.
Executive summary:

An experimental study was conducted according to Regulation (EC) No 440/2008 Methods A.1. and OECD Test Guidelines 102 to determine the melting point of the test item using differential scanning calorimetry and photo cell detection. During the heating phase an endothermic effect was observed in the temperature range of 20 – 80 °C. During the boiling point verification measurement with the photocell detection method the test item was completely molten at approx. 60 °C. Therefore, this endothermic effect can be assigned to the melting of the test item. The melting range of the test item was determined to 31 to 44 °C.

Description of key information

The melting range of the test item was determined to 31 to 44 °C.

Key value for chemical safety assessment

Additional information

An experimental study was conducted according to Regulation (EC) No 440/2008 Methods A.1. and OECD Test Guidelines 102 to determine the melting point of the test item using differential scanning calorimetry and photo cell detection. During the heating phase an endothermic effect was observed in the temperature range of 20 – 80 °C. During the boiling point verification measurement with the photocell detection method the test item was completely molten at approx. 60 °C. Therefore, this endothermic effect can be assigned to the melting of the test item. The melting range of the test item was determined to 31 to 44 °C.