Registration Dossier

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
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

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).

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.

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.