4''-butyl-4-[difluoro(3,4,5-trifluorophenoxy)methyl]-2',3,5-trifluoro-1,1':4',1''-terphenyl

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

20.06.2016 - 07.09.2016

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)

Deviations:

no

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

> 415 - < 480 °C

Atm. press.:

1 013.3 hPa

Decomposition:

yes

Two DSC measurements in aluminium crucibles with a hole showed an endothermal effect after the melting in the temperature range of 415 -418 °C. No further endothermic or exothermic effects were observed up to the final temperature (500 °C). The mass loss after the DSC measurements amounted to approx. 90 %.

Table 2: Boiling point (DSC measurement)

Ident No.	Test item mg	Starting temperature °C	Final test temperature °C	Temperature range (boiling) °C	Onset °C	Crucible	Observations after the measurement
35627	12.24	25	500	420 - 470	428.93	Aluminium with a hole	Black residue, mass loss: 10.85 mg
35629	13.92	25	500	415 - 480	426.55	Aluminium with a hole	Black residue, mass loss: 12.19 mg

After the measurements a black residue was observed and the mass loss was incomplete. The test item showed a behaviour plausible for boiling under decomposition in a temperature range of 415 - 480 °C.

Conclusions:

The test item boiled under decomposition in a temperature range of 415 - 480 °C.

Executive summary:

A study was conducted according to OECD TG 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 12 - 14 mg of the test item were performed. The crucible was heated from room temperature to 500 °C with 10 K/min heating rate. Two DSC-runs in aluminium crucibles with a hole showed an endothermic effect after melting in the temperature range 415 - 418 °C with an onset temperature of approx. 430 °C. The colour of the test item changed in the course of the measurement to a black residue. From this fact and considering the result of the DSC-measurement in a closed glass crucible it can be concluded that the test item boiled under decomposition in the temperature range of approximately 415 - 480 °C.

Description of key information

The test item boiled under decomposition in a temperature range of 415 - 480 °C.

Additional information

A study was conducted according to OECD TG 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 12 - 14 mg of the test item were performed. The crucible was heated from room temperature to 500 °C with 10 K/min heating rate. Two DSC-runs in aluminium crucibles with a hole showed an endothermic effect after melting in the temperature range 415 - 418 °C with an onset temperature of approx. 430 °C. The colour of the test item changed in the course of the measurement to a black residue. From this fact and considering the result of the DSC-measurement in a closed glass crucible it can be concluded that the test item boiled under decomposition in the temperature range of approximately 415 - 480 °C (reference 4.3-1).