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Physical & Chemical properties

Melting point / freezing point

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Administrative data

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March 03, 2015 - March 04, 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
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
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
> 500 °C
Decomposition:
no
Sublimation:
no

Individual result


Melting point / melting range (DSC measurement)

One DSC measurement in an aluminium crucible with a hole showed no thermal effect in the temperature range of 25 – 500 °C. The results of the DSC measurement are summarized in Table 2.

Table 2: Melting point (DSC-measurements)

Ident No.

Test item / mg

Final test temperature / °C

Type of effect

Temperature range / °C

Onset / °C

Crucible

34883

7.59

500

-

-

-

Aluminium with a hole

After the DSC measurement with thefinal test temperature of 500 °C the sample inthe aluminium crucible appeared unchanged.

The test item had no melting point within the measurement range of 25 - 500 °C.

 

Conclusions:
Melting Point >500°C
Executive summary:

The determination of the melting point / melting range was carried out by differential scanning calorimetry (DSC). The test item and the reference are heated up at a constant heating rate (10 K/min) in a defined atmosphere (nitrogen). Aluminium crucibles with a small hole are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded.

 

Study performed in accordance with the following guidelines:

EU Method A.1 (Melting / Freezing Temperature)

OECD Guideline 102 (Melting point / Melting Range)

 

Results

One DSC measurement in an aluminium crucible with a hole showed no thermal effect in the temperature range of 25 – 500 °C.

After the DSC measurement with the final test temperature of 500 °C the sample in the aluminium crucible appeared unchanged.

The test item had no melting point within the measurement range of 25 - 500 °C.

 

Melting Point >500°C

Description of key information

Key value could not be determined in a laboratory study carried out by differential scanning calorimetry (DSC) performed in accordance with OECD Guideline 102 and EU Method A.1.

The test item had no melting point within the measurement range of 25 - 500 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
500 °C

Additional information

The determination of the melting point / melting range was carried out by differential scanning calorimetry (DSC).

One DSC measurement in an aluminium crucible with a hole showed no thermal effect in the temperature range of 25 – 500 °C.

After the DSC measurement with the final test temperature of 500 °C the sample in the aluminium crucible appeared unchanged.

The test item had no melting point within the measurement range of 25 - 500 °C.

Melting Point >500°C