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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 2020-02-03 to 2020-02-24
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:
440/2008/EC, 30 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
>= -77 - <= -75 °C
Atm. press.:
>= 988.3 - <= 1 001.3 hPa
Decomposition:
no
Sublimation:
no

During the cooling phase down to -90 °C no thermal effects could be observed. In the subsequent heatingphase a distinct endothermic effect was observed in the temperature range of -80 to -70 °C, which 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 76.34 °C, the test item has a melting range of -75 to -77 °C.

 

No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

PN19172

9.56

-75.27
+229.64

-80 to -70 (endo)
180 – 250 (endo)

9.56

1001.3

PN19177

10.89

-77.41
+229.23

-80 to -70 (endo)
180 – 250 (endo)

10.89

988.3

Conclusions:
The test item has a melting range of -75 to -77 °C.
Executive summary:

The melting point of the test item was determined according to OECD test guideline 102 and Regulation EC No. 440/2008, Method A.1. Under ambient conditions, the test item is liquid. The tests were started at ambient temperature. The temperature was first decreased to -90 °C at a constant cooling rate of 0.25 K/min. After 30 min at -90 °C the temperature was increased up to 500 °C at a constant heating rate of 10 K/min. During the cooling phase down to -90 °C no thermal effects could be observed. In the subsequent heating phase a distinct endothermic effect was observed in the temperature range of -80 to -70 °C, which can be assigned to the melting of the test item. The melting range of the test item was determined to be -75 to -77 °C.

Description of key information

The test item has a melting range of -75 to -77 °C.

Key value for chemical safety assessment

Additional information

The melting point of the test item was determined according to OECD test guideline 102 and Regulation EC No. 440/2008, Method A.1. Under ambient conditions, the test item is liquid. The tests were started at ambient temperature. The temperature was first decreased to -90 °C at a constant cooling rate of 0.25 K/min. After 30 min at -90 °C the temperature was increased up to 500 °C at a constant heating rate of 10 K/min. During the cooling phase down to -90 °C no thermal effects could be observed. In the subsequent heating phase a distinct endothermic effect was observed in the temperature range of -80 to -70 °C, which can be assigned to the melting of the test item. The melting range of the test item was determined to be -75 to -77 °C.