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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 18, 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
European Commission Regulation (EC) No. 440/2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
> 500 °C
Atm. press.:
ca. 1 013.25 hPa
Decomposition:
no

Two DSC measurements with a heating rate of 10 K/min showed neither an endothermal nor an exothermal effect after the melting (215 - 235 °C).

The test item had no boiling point up to 500 °C under atmospheric conditions.

The results of the DSC measurements are summarized in below table:

Ident No.

Test item /mg

Starting temperature / °C

Final test temperature / °C

Temperature range (boiling) / °C

Onset / °C

Crucible

Observations after the measurement

38878

6.89

25

500

-

-

Aluminium with a hole

The test item was a white melt. Mass loss 4%

38879

9.25

25

500

-

 

-

Aluminium with a hole

The test item was a white melt. Mass loss 3%

Conclusions:
The test item had no boiling point up to 500 °C under atmospheric conditions.

Description of key information

The test item had no boiling point up to 500 °C under atmospheric conditions.

Key value for chemical safety assessment

Additional information

A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry.

The boiling point / boiling range was determined by differential scanning calorimetry (DSC). The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had no boiling point up to 500 °C under atmospheric conditions.

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