Reaction mass of Fatty acids, montan-wax and Fatty acids, montan-wax, ethylene esters and Fatty acids, montan wax, mixed esters with fatty acids C16-18 and ethylene glycol and Fatty acids, montan-wax, stearyl esters and Montan wax

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

June 2017 to Nov. 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Justification for type of information:

Differential scanning calorimetry is one of the methods applicable for determination of the boiling point according to OECD 103.

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point/Boiling Range)

Version / remarks:

Adopted: 27.07.95

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

European Commission Regulation (EC) No. 440/2008

Deviations:

no

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Atm. press.:

ca. 1 013 hPa

Decomposition:

yes

Decomp. temp.:

>= 220.06 °C

Remarks on result:

other: Exothermal decomposition before boiling

No endothermal effect other than the one referred to as melting (onset 72.92 °C; peak 82.25 °C) was detected up to a temperature of approx. 170 °C. The exact melting temperature was determined seperately (see IUCLID section 4.2, Melting point) as the single/first heating run still includes the thermal history of the substance and therfore does not give a standardised, reproducible result.

At > 200 °C the onset of an exothermal effect indicated the reaction of the test item with air. As the residual test item in the crucibles proved to be black/dark brown, the authors conclude, that decomposition took place.

Results:

 Exothemal decomposition onset temperature 220.06 °C

 Boiling point: not determinable, exothermal decomposition before boiling

Conclusions:

Boiling point (OECD 103; DSC) at ambient pressure (ca. 1013 hPa): not determinable, decompositon before boiling.
Exothemal decomposition onset temperature: 220.06 °C

Executive summary:

The boiling point for the test item was determined in a reliable study using differential scanning calorimetry according to relevant guidelines (OECD 103; EU method A.2).

Based on the Indium standard, an accuracy of the measurement of 99.94% was determined.

The test item was heated up from ambient temperatue to the final temperature (500 °C) at a constant heating rate (10 K/min) in an atmosphere of air.

No endothermal effect other than the one referred to as melting was detected up to a temperature of approx. 170 °C.

At > 200 °C the onset of an exothermal effect indicated the reaction of the test item with air. As the residual test item in the crucibles proved to be black/dark brown, the authors conclude that decomposition took place.

Results:

 Exothemal decomposition onset temperature 220.06 °C

 Boiling point: not determinable, exothermal decomposition before boiling

Description of key information

Boiling point (OECD 103; DSC) at ambient pressure (ca. 1013 hPa): not determinable, decompositon before boiling.

Exothemal decomposition onset temperature: 220.06 °C

Boiling point >220.06 °C

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

220.06 °C

Additional information

The boiling point for the test item was determined in a reliable study using differential scanning calorimetry according to relevant guidelines (OECD 103; EU method A.2).

Based on the Indium standard, an accuracy of the measurement of 99.94% was determined.

The test item was heated up from ambient temperatue to the final temperature (500 °C) at a constant heating rate (10 K/min) in an atmosphere of air.

No endothermal effect other than the one referred to as melting was detected up to a temperature of approx. 170 °C.

At > 200 °C the onset of an exothermal effect indicated the reaction of the test item with air. As the residual test item in the crucibles proved to be black/dark brown, the authors conclude that decomposition took place.

Results:

 Exothemal decomposition onset temperature 220.06 °C

 Boiling point: not determinable, exothermal decomposition before boiling

Exothermal decomposition onset temperature taken as key value for the boiling point.