Bis(2-hydroxyethyl) sulphone

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

The study was conducted between 03 July 2016 and 03 September 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

Identification: BHES
Other names: Bis(2-hydroxyethyl) sulphone
Appearance/Physical state: White solid block
Batch: 160226
Purity: 99.64%
Expiry date: 01 March 2017
Storage conditions: Room temperature in the dark

Atm. press.:

>= 101.4 - <= 102 kPa

Decomposition:

yes

Decomp. temp.:

>= 180 °C

Remarks on result:

not determinable

Remarks:

As the test item decomposed, no value for boiling point could be determined

As a result of the initial low rate of enthalpy change during decomposition, the onset temperature could only be approximated.

Similar thermographic profiles were obtained using air and nitrogen atmospheres. This indicated that the decomposition was probably thermal and not oxidative.

Visual investigations were carried out using metal block analysis, which showed no bubbling of the test item was observed up to 280 °C, therefore it has been concluded that losses with heating were due to loss of volatiles and not boiling of the test item. There was a clear change in color of the test item at approximately 210 °C consistent with decomposition of the test item.

Conclusions:

The test item has been determined to decompose from approximately 180 °C (453 K) at 101.4 to 102.0 kPa. As the test item decomposed, no value for boiling point could be determined.

Executive summary:

Decomposed from approximately180 °C (453 K) at 101.4 to 102.0 kPa, by differential scanning calorimetry, 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. As the test item decomposed, no value for boiling point could be determined.

Description of key information

Decomposed from approximately 180 °C (453 K) at 101.4 to 102.0 kPa, by differential scanning calorimetry, 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. As the test item decomposed, no value for boiling point could be determined.