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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:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Justification for type of information:
Data from authoritative database
Qualifier:
according to
Guideline:
other: as mentioned below
Principles of method if other than guideline:
Determine melting point of 2,2'-(ethene-1,2-diyldi-4,1-phenylene)bis(1,3-benzoxazole)
GLP compliance:
no
Type of method:
other: no data
Specific details on test material used for the study:
- Name of test material (as cited in study report): 2,2'-(Vinylenedi-4-phenylene)bis(benzoxazole)
- Molecular formula : C28H18N2O2
-Molecular weight : 414.462 g/mol
- Substance type:Organic
- Physical state:Solid
Melting / freezing pt.:
>= 365 - <= 368 °C
Decomposition:
no
Sublimation:
no
Remarks on result:
other: no other details available
Conclusions:
Based on available data from Authoritative database,the melting point of chemical 2,2'-(Vinylenedi-4-phenylene)bis(benzoxazole) was determined to be in the range of 365-368 °C
Executive summary:

Based on available data from Authoritative database,the melting point of chemical 2,2'-(Vinylenedi-4-phenylene)bis(benzoxazole) was determined to be in the range of 365-368 °C

Description of key information

The melting point determination of 2,2'-(vinylenedi-p-phenylene)bisbenzoxazole (CAS No. 1533-45-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Melting Point was determined  to be 349.8°C at 977.5hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
349.8 °C

Additional information

The melting point determination of 2,2'-(vinylenedi-p-phenylene)bisbenzoxazole (CAS No. 1533-45-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Melting Point was determined  to be 349.8°C at 977.5hPa.

Other supporting studies from authoritative database also suggests that the melting point of chemical 2,2'-(Vinylenedi-4-phenylene)bis(benzoxazole) determined to be in the range of 365 °C to 368 °C

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of melting point as 349.8 degree C thus considered as key study for the chemical safety assessment.