4-bromo-3,3,4,4-tetrafluorobut-1-ene

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

March 11, 2020 - March 13, 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

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 thermal analysis

Key result

Boiling pt.:

61 °C

Atm. press.:

1 013.3 hPa

Boiling point / boiling range: DSC measurement

Two DSC measurements in aluminium crucibles with a hole showed an endothermal effect in the temperature range of 10　–　85　°C. The onset temperature (see Table 3) was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline. No further endothermal or exothermal effects were observed up to the final temperature (500　°C). The mass loss after the DSC measurements amounted to 100　%.

The results of the DSC measurements are summarized in Table 3.

Table 3: Boiling point (DSC measurement)

Ident No.	Test item　/ mg	Starting temperature / °C	Final test temperature　/ °C	Temperature range (endo-thermal)　/ °C	Onset　 (boiling) / °C	Crucible	Observations after the measurement
39057	14.58	0	500	20 –85	61.19	Aluminium with a hole	The crucible was empty.
39058	10.52	0	500	10 – 80	60.39	Aluminium with a hole	The crucible was empty.

For the correction of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation, table and graphs of H.B. Hass and R.F. Newton in "CRC Handbook of Chemistry and Physics, 74th ed. 1993-1994", pages 15-16 and 15-17 were used:

t Temperature in °C

p pressure in hPa

For the estimation of F the test item was classified in group 2 (hydrocarbons) according to the table of H.B Hass and R.F. Newton in "CRC Handbook of Chemistry and Physics". The results are shown in Table 4.

Table 4: Correction of the boiling point to standard atmospheric pressure

Ident No.	Onset / °C	Ambient pressure / hPa	F (Group 2)	D t / °C	Boiling point at 1013.3 hPa / °C
39057	61.19	1007.7	4.663	0.170	61.36
39058	60.39	1007.7	4.661	0.169	60.56

The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 61.0　°C.

 

Executive summary:

The test item had a mean boiling point at atmospheric pressure (1013.3　 hPa) of 61.0　°C.

Description of key information

The test item had a mean boiling point at atmospheric pressure (1013.3　hPa) of 61.0　°C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

61 °C