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EC number: 241-698-9 | CAS number: 17696-62-7
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-01-05 to 2018-03-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- CAS No.: 17696-62-7
Batch: 018964K19K
Expiry date: 02 August 2018
Purity: 99.1%
Appearance: White powder
Storage: In darkness at room temperature - Key result
- Boiling pt.:
- 240.9 °C
- Atm. press.:
- 1 atm
- Conclusions:
- The mean corrected boiling point of the test item phenyl 4-hydroxybenzoate was 240.9 °C ± 0.5 °C.
- Executive summary:
The mean corrected boiling point of the test item phenyl 4 -hydroxybenzoate determined by differential scanning calorimetry according to OECD guideline 103 was 240.9 °C ± 0.5 °C.
Reference
Three assays were performed during the test and two of these assays complied with the accuracy criterion. Only these assays are presented in the following. The third assay was not necessary: First, a too small quantity of test item was weighed (3.33 mg) and the result was not consistent compared with the other assays. Secondly, regarding the results of the assays No. 1 and 2, the third assay was useless.
Assay No. 1:
- Gas used: Nitrogen
- Ventilation: Yes
- Atmospheric pressure: 98.3 kPa
- Crucible used: Aluminium, 120 µl, with pierced lid
- Mass of test item: 7.16 mg
- Program Phase 1: Isotherm at about 25 °C for 5 minutes, heating phase from 25 °C to 600 °C at 10 °C/min
The observed boiling point of the test item for this assay was 239.7 °C. The boiling point of the test item corrected to atmospheric pressure was 241.0 °C. Decomposition was observed after the boiling point of the test item. A black deposit was observed in the crucible. It remained 1.78 mg in the crucible (correspoinding to 24.9 % of the initial mass).
Assay No. 2:
- Gas used: Nitrogen
- Ventilation: Yes
- Atmospheric pressure: 98.3 kPa
- Crucible used: Aluminium, 120 µl, with pierced lid
- Mass of test item: 7.54 mg
- Program Phase 1: Isotherm at about 25 °C for 5 minutes, heating phase from 25 °C to 600 °C at 10 °C/min
The observed boiling point of the test item for this assay was 239.4 °C. The boiling point of the test item corrected to atmospheric pressure was 240.7 °C. Decomposition was observed after the boiling point of the test item. A black deposit was observed in the crucible. It remained 1.88 mg in the crucible (correspoinding to 24.9 % of the initial mass).
Description of key information
The mean corrected boiling point of the test item phenyl 4 -hydroxybenzoate determined by differential scanning calorimetry according to OECD guideline 103 was 240.9 °C ± 0.5 °C.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 240.9 °C
Additional information
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