Reaction mass of 2-{[2-(2-hydroxyethoxy)ethoxy]carbonyl}benzoic acid and 2,2'-oxydiethanol

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

other: Currenta internal method 2011-0568901-99D (DTA/DSC)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Version / remarks:

(adopted, 27th July 1995)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

(adopted, May 2008)

Deviations:

no

Principles of method if other than guideline:

Melting point, boiling point, thermal stability and glass transition temperature by Differential Thermal Analysis (DTA):
Samples of the test item and of a reference material are subjected to the same controlled temperature programme. When the test item undergoes a phase transition, the corresponding change of enthalpy gives an endothermic (melting) or exothermic (freezing) departure from the base line of the temperature record.
Melting point, boiling point, thermal stability and glass transition temperature by Differential Scanning Calorimetry (DSC):
Samples of the test item and of a reference material are subjected to the same controlled temperature programme. The difference in energy input necessary to maintain identical temperatures between the test item and the reference material is recorded. When the sample undergoes a phase transition, the corresponding change of enthalpy gives a departure from the base line of the heat flow record.

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Boiling pt.:

246.4 °C

Atm. press.:

other: No pressure reported

Decomposition:

yes

Decomp. temp.:

360 °C

First decomposition products were formed between approx. 130 °C and 170 °C also between approx. 285 °C and 350 °C.

Conclusions:

The boiling point of the test item is 246.4 °C with no pressure reported.

Executive summary:

The boiling point was testet according to the differential scanning calorimetry method, which is equivalent with the EU Method A.2 (Boiling Temperature). No boiling point could be specified, possibly due to the parallel decomposition at increasing temperature of the test item. Samples of the test item and of a reference material were subjected to the same controlled temperature programme. The difference in energy input necessary to maintain identical temperatures between the test item and the reference material was recorded. First decomposition products were formed between approx. 130 °C and 170 °C also between approx. 285 °C and 350 °C. A boiling point of 246.4 °C was determined with no pressure reported.

Description of key information

According to EU Method A.2, a boiling point of 246.4 °C was determined (pressure not reported).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

246.4 °C

Additional information

First decomposition products were formed between approx. 130 °C and 170 °C also between approx. 285 °C and 350 °C.