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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-02-21 – 2017-02-21
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental result performed using standard methods of analysis
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
The melting point determination of Test item Dibenzo[b,f]cyclohepten-1-one (CAS No. 2222- 33-5 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.
GLP compliance:
not specified
Type of method:
other: standard laboratory method
Specific details on test material used for the study:
- Name of test material (as cited in study report):Dibenzo[b,f]cyclohepten-1-one
- Molecular formula :C15H10O
- Molecular weight: 206.243 g/mol
- Substance type:Organic
- Physical state:Solid
Key result
Melting / freezing pt.:
>= 87.8 - <= 94.1 °C
Atm. press.:
977 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: other details not available
Conclusions:
The melting point determination of Dibenzo[b,f]cyclohepten-1-one (CAS No. 2222-33-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 87.8 °C -94.1°C at 971.8hPa.
Executive summary:

The melting point determination of Dibenzo[b,f]cyclohepten-1-one (CAS No. 2222-33-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 87.8 °C -94.1°C at 971.8hPa.

Description of key information

The melting point determination of Dibenzo[b,f]cyclohepten-1-one (CAS No. 2222-33-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 87.8 °C -94.1°C at 971.8hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
87.8 °C

Additional information

The melting point determination of Dibenzo[b,f]cyclohepten-1-one (CAS No. 2222-33-5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 87.8 °C -94.1°C at 971.8hPa.

Other supporting studies from various reliable sources such as authoritative database also indicates that the metling point of chemical Dibenzo[b,f]cyclohepten-1-one was determined to be in the range of 85 degree C to 91 degree C.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of melting point temperature as 87.8 degree C to 94.1 degree C thus considered as key study for the chemical safety assessment.