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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26.07.2005 - 13.12.2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study, GLP
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
December 1992
Deviations:
no
GLP compliance:
yes
Type of method:
other: Differential scanning calorimetry
Remarks on result:
other: The DSC-curve shows no sign of a melting peak, but an endothermic cp-step at -109 °C, characteristic for a glass transition, i.e. the test item solidifies amourphously.
Conclusions:
No melting point of Butyldiglycol methacrylate could be determined by differential scanning calorimetry but an endothermic cp-step at -109 °C; characteristic for a glass transition, i.e. the test item solidifies amorphously. Therefore a melting point <-20 °C is adopted for Butyldiglycol methacrylate.
Executive summary:

No melting point of Butyldiglycol methacrylate could be determined by differential scanning calorimetry but an endothermic cp-step at -109 °C; characteristic for a glass transition, i.e. the test item solidifies amorphously. Therefore a melting point <-20 °C is adopted for Butyldiglycol methacrylate.

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Description of key information

No melting point of Butyldiglycol methacrylate could be determined by differential scanning calorimetry but an endothermic cp-step at -109 °C; characteristic for a glass transition, i.e. the test item solidifies amorphously. Therefore a melting point <-20 °C is adopted for Butyldiglycol methacrylate.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information