Registration Dossier
Registration Dossier
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EC number: 202-181-3 | CAS number: 92-71-7
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24th July 2017 to the 20th November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 2,5-diphenyloxazole
- EC Number:
- 202-181-3
- EC Name:
- 2,5-diphenyloxazole
- Cas Number:
- 92-71-7
- Molecular formula:
- C15H11NO
- IUPAC Name:
- 2,5-diphenyl-1,3-oxazole
- Test material form:
- solid: crystalline
- Details on test material:
- Expiry date:01 February 2021
Storage conditions: Room temperature in the dark
Batch 21-16131
1
- Specific details on test material used for the study:
- Identification:
2,5-diphenyloxazole
Appearance/Physical state:
White crystalline powder
Batch:
21-16131
Purity:
99.9%
Expiry date:
01 February 2021
Storage conditions:
Room temperature, in the dark
Results and discussion
Boiling point
- Key result
- Boiling pt.:
- >= 364.2 - <= 365.3 °C
- Atm. press.:
- ca. 100.7 kPa
Applicant's summary and conclusion
- Conclusions:
The substance, 2,5-diphenyloxazole, leting point was studied in accordance with EC Method A.2 and OECD Method 103 via a GLP-certified laboratory. The study used the Differential Scanning Calorimeter method and determined that the substance boiling point was 364.7 ± 0.5 °C at 100.7 kPa.- Executive summary:
The substance, 2,5-diphenyloxazole, leting point was studied in accordance with EC Method A.2 and OECD Method 103 via a GLP-certified laboratory. Aliquots of test item (see following table) were placed in pre-pierced crucibles and were subjected to a thermal program from 200 to 450 °C at 20 °C/min. The standard boiling temperature is defined as the point at which the vapor pressure of a liquid is the same as the standard pressure (101.325 kPa). The extrapolated onset point of the relevant endothermic peak is usually stated as the boiling point.
The study used the Differential Scanning Calorimeter method and determined that the substance boiling point was 364.7 ± 0.5 °C at 100.7 kPa.
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