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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:
October 1992- January 1993
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes
Type of method:
capillary method
Key result
Melting / freezing pt.:
83 - 87 °C
Remarks on result:
other: Atmosphere pressure not reported

Results of certified reference materials

      Melting point (°C)

 Reference material

measured value   certified value
4 -nitrotoluene   52.5  52.30
 naphthalene  80.5  80.81
 acetanilide  114.0  114.58
 diphenyl acetic acid  148.0  147.57
 2 -chloroanthraquinone  210.5  210.75
 carbazole  246.5  246.70
Conclusions:
The melting point of 1,3-bis(3-methyl-2,5-dioxo-1H-pyrrolinylmethyl)benzene was determined at 83 °C to 87 °C.
Executive summary:

The melting point of 1,3-bis(3-methyl-2,5-dioxo-1H-pyrrolinylmethyl)benzene was determined according at the OECD guideline 102 "Melting point / Melting range" and EU method A.1 " Melting / Freezing temperature". The capillary method shoewd a value in the range of 83 °C to 87 °C.

Description of key information

The melting point of 1,3-bis(3-methyl-2,5-dioxo-1H-pyrrolinylmethyl)benzene was

determined at 83 °C to 87 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
85 °C

Additional information

Cowlin reported a melting point in the range of 83 °C to 87 °C.