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Diss Factsheets

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:
2014
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
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Lot #JBKF0002R
Key result
Remarks on result:
other: Polymerization occurs before evaporation and prevents proper determination of the evaporation point.
Conclusions:
Under the study conditions, polymerization of the test substance occured before evaporation and prevented proper determination of the evaporation point.
Executive summary:

A study was conducted to determine the boiling point of the test substance according to OECD Guideline 103 and EU Method A.2. The onset of evaporation was assessed. For temperature-sensitive resins such as acrylate resins, polymerization may occur along with or before evaporation and often prevents proper determination of the evaporation point. As the resins are liquid at room temperature, evaporation is measured at supra-ambient temperatures using conventional differential scanning calorimetry (DSC). Typically, a sample of ≈ 10 mg was loaded in a standard aluminum crucible (40 µL) fitted with a pierced lid. The measurements were conducted at a linear heating rate of 10 °C min-1using commercial DSC equipment. The DSC cell was flushed with nitrogen gas at a flow rate of 50 mL min-1. Under the study conditions, polymerization of the test substance occured before evaporation and prevented proper determination of the evaporation point (Herssens, 2014).

Description of key information

The boiling point was determined according to OECD Guideline 103 and EU Method A.2 (Herssens, 2014).

Key value for chemical safety assessment

Additional information

Polymerization of the substance occured before evaporation and prevented proper determination of the evaporation point.