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EC number: 945-889-4 | CAS number: -
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:
- 16 September 2015 to 09 December 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- ca. 110 °C
- Atm. press.:
- >= 99 - <= 101 kPa
- Conclusions:
- The test item has been determined to boil from approximately 110°C (383K) at 99 to 101 kPa
- Executive summary:
GUIDELINE
The determination was carried out by differential scanning calorimetry, using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
DISCUSSION
As a result of the low rate of enthalpy change, the onset of boiling could only be approximated. With the test item being a complex mixture with a wide range of component sizes, the small components that boiled first only represented a very small percentage of the test item and therefore caused only a small enthalpy change in the thermogram. As the temperature increased, the components that boiled were an increasingly higher percentage of the test item until it reached a peak at about 380 to 400 °C. As approximately 40% of the test item remained after heating to 400 °C, complete boiling of the test item did not occur.
CONCLUSION
The boiling temperature of the test item has been determined to be from approximately 110 °C (383 K) at 99 to 101 kPa.
Reference
RESULTS
- Thermograms for Determinations 1 and 2 are shown in Figures 3.1 and 3.2 (attached).
- Thermographic data for Determinations 1 and 2 are shown in Table 3.3 (attached).
Description of key information
The boiling temperature of the test item has been determined to be from approximately 110 °C (383 K) at 99 to 101 kPa (OECD 103 and EU Method A.2).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 110 °C
Additional information
GUIDELINE
The determination was carried out by differential scanning calorimetry, using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
DISCUSSION
As a result of the low rate of enthalpy change, the onset of boiling could only be approximated. With the test item being a complex mixture with a wide range of component sizes, the small components that boiled first only represented a very small percentage of the test item and therefore caused only a small enthalpy change in the thermogram. As the temperature increased, the components that boiled were an increasingly higher percentage of the test item until it reached a peak at about 380 to 400 °C. As approximately 40% of the test item remained after heating to 400 °C, complete boiling of the test item did not occur.
CONCLUSION
The boiling temperature of the test item has been determined to be from approximately 110 °C (383 K) at 99 to 101 kPa.
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