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Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-02-28 to 2018-08-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
> 143.9 - < 145.3 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no

The test item showed a second endothermic signal in the temperature range of 160 – 260 °C, which could not be clearly assigned to the boiling of the test item. Thus the capillary method was performed. In two capillaries, boiling points of 144.4 and 144.0 °C were detected automatically by the apparatus. With correction for the air pressure (987 and 1016 mbar, respectively), the boiling range in the capillary method was 143.9 to 145.3 °C. Due to the fact that the BÜCHI Apparatus detected the boiling temperature very clearly, this temperature is used as boiling point of the test item. No further thermal effects were observed up to the test end temperature of 500 °C.

Conclusions:
The boiling point was determined to be in range from 143.9 to 145.3 °C.
Executive summary:

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OCSPP test guideline 830.7220 to determine the boiling point of the test item using differential scanning calorimetry. The test item was weighed in under air into the aluminium crucibles. Two tests with about 19 – 22 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. Thus the capillary method was performed. In two capillaries, boiling points of 144.4 and 144.0 °C were detected automatically by the apparatus. With correction for the air pressure (987 and 1016 mbar, respectively), the boiling range in the capillary method was 143.9 to 145.3 °C. Due to the fact that the BÜCHI Apparatus detected the boiling temperature very clearly, this temperature was determined as boiling range of the test item.

Description of key information

The boiling point was determined to be in range from 143.9 to 145.3 °C.

Key value for chemical safety assessment

Additional information

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OCSPP test guideline 830.7220 to determine the boiling point of the test item using differential scanning calorimetry. The test item was weighed in under air into the aluminium crucibles. Two tests with about 19 – 22 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. Thus the capillary method was performed. In two capillaries, boiling points of 144.4 and 144.0 °C were detected automatically by the apparatus. With correction for the air pressure (987 and 1016 mbar, respectively), the boiling range in the capillary method was 143.9 to 145.3 °C. Due to the fact that the BÜCHI Apparatus detected the boiling temperature very clearly, this temperature was determined as boiling range of the test item [(eference 4.3 -1).