Registration Dossier
Registration Dossier
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EC number: 210-288-1 | CAS number: 611-99-4
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Remarks:
- DSC 4000, Perkin Elmer with one-way aluminium crucibles with perforated lid. Usage and calibration following to the corresponding SOP 11400379 in the current edition
- Specific details on test material used for the study:
- Name 4,4-Dihydroxybenzophenone
Batch no. 20111104
Composition 4,4-Dihydroxybenzophenone
CAS No. 611-99-4
Purity ≥ 99.5% purity - Key result
- Boiling pt.:
- >= 293.91 - <= 353.53 °C
- Remarks on result:
- other: atmospheric pressure was not quoted in the report. For DSC analysis, the atmospherc pressure is not a critial parameter
- Conclusions:
- The DSC trace for the determination of the boiling point of 4,4-Dihydroxybenzophenone showed a gradual peak rather than a sharp peak so the boiling range should be stated as: 293.91 °C (567.06 K) to 353.53 °C (626.68 K)
The main peak for the two full event determinations was at 318.0°C and 318.2°C. The average value is calculated to be 318.1°C.
Reference
In all performed runs the melting range was detected, which was already determined in Study 17112807N904. The determined melting range during this performances differed slightly according to the values of the melting point study, this is caused through device specific reasons.
In the first run the beginning of boiling event was visible, in the other runs the whole event could be detected.
All events are endotherms. As the first event is the melting range, the second event must be the boiling phase. The observations of the pre-test confirm this.
Description of key information
The DSC trace for the determination of the boiling point of 4,4-Dihydroxybenzophenone showed a gradual peak rather than a sharp peak so the boiling range should be stated as: 293.91 °C (567.06 K) to 353.53 °C (626.68 K)
The main peak for the two full event determinations was at 318.0°C and 318.2°C. The average value is calculated to be 318.1°C.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 318.1 °C
Additional information
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