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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-08-02 to 2016-09-01
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Key result
Decomposition:
yes
Decomp. temp.:
> 350 °C
Remarks on result:
not determinable

From 275°C upwards the weight of the sample decreased significantly. At 344°C the sample weight had decreased by 25%. After the experiment, a colourless residue remained in the sample container (original colour: colourless to light yellow). The change of the colour indicated reaction and/or decomposition of the substance.

Conclusions:
Decomposition of 4,4'-(1-phenylethane-1,1-diyl)bis(heptyloxybenzene) was observed during DSC experiments at temperatures of > 350°C (> 623K). Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the substance has no boiling temperature.
Executive summary:

The substance has no boiling temperature.

Description of key information

Decomposition of 4,4'-(1-phenylethane-1,1-diyl)bis(heptyloxybenzene) was observed during DSC experiments at temperatures of > 350°C (> 623K). Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the substance has no boiling temperature.

Key value for chemical safety assessment

Additional information