1-butoxy-2,3-difluorobenzene

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

14 JAN 2002 - 21 MAR 2002

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

Guideline 92/69/EEC, 1992

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Boiling pt.:

222 °C

Atm. press.:

1 013.3 hPa

Two DSC-measurements show an endothermic effect in the range 180 - 230 °C with an onset temperature of approximately 222 °C.

Ident-No.	Onset / °C	Temperature range / °C	Crucible
13598	221.97	180 - 230	Aluminium with an aperture
13599	221.25	180 - 230	Aluminium with an aperture

A graphical presentation of the DSC run No. 13599 in an aluminium pan with a hole is given as attached background material.

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

∆t = [(273.15 + t) (3.0057 -log p)] / [ф + 0.15(3.0057 - log p)] (t in °C, p in hPa)

For the estimation of ф the test substance was classified in group 2 (Hydrocarbons, Ethers) according to the table of H.B Hass and R.F. Newton (see figure 3 on page 13).

ф (222 °C, group 2) = 5.0 (from the graph).

Ident-No.	Onset / °C	Atmospheric pressure / hPa	∆t / °C	Boiling point at 1013.3 hPa / °C
13598	221.97	1002	+ 0.48	222.5
13599	221.25	1002	+ 0.48	221.7

The mean boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Conclusions:

The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Executive summary:

The boiling point was tested according to EU Method A.2 and OECD Guideline 103 in a GLP study via differential scanning calorimetry. The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Description of key information

The boiling point was tested according to EU Method A.2 and OECD Guideline 103 in a GLP study via differential scanning calorimetry. The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

222 °C