2-methylbenzene-1,4-diyl bis{4-[3-(acryloyloxy)propoxy]benzoate}

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03 APR 2000 - 21 JUN 2000

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

Guuideline 92/69/EEC of 31 July 1992

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Decomposition:

yes

Decomp. temp.:

190 °C

Remarks on result:

not determinable

The measurement in a closed glass pan shows an endothermic effect (melting) in the range 50-90 °C, with an onset of 64 °C, a small endothermic effect at a temperature of ca. 125 °C (transition of the liquid crystalline to the isotropic phase; information by the producer) and an exothermal decomposition in the range 185-310 °C, with a decomposition energy of 268 J/g, and a second one in the range 355-450 °C, with a decomposition energy of 328 J/g.

The test substance doesn't show any endothermic effect above the melting of the substance up to the temperature where the exothermal decomposition begins. So a boiling temperature at atmospheric pressure does not exist.

Conclusions:

The test substance decomposes before boiling.

Executive summary:

The determination of the boiling point was carried out by differential scanning calorimetry (DSC) according to Guideline 92/69/EEC A.2 under GLP conditions. The test substance doesn't show any endothermic effect above the melting of the substance up to the temperature where the exothermal decomposition begins. So a boiling temperature at atmospheric pressure does not exist.

Description of key information

The determination of the boiling point was carried out by differential scanning calorimetry (DSC) according to Guideline 92/69/EEC A.2 under GLP conditions. The test substance doesn't show any endothermic effect above the melting of the substance up to the temperature where the exothermal decomposition begins. So a boiling temperature at atmospheric pressure does not exist.