Registration Dossier

Diss Factsheets

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25 July 2016 to 26 August 2016
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
Reason / purpose for cross-reference:
reference to same 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:
European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.2: “Boiling Temperature”, Official Journal of the European Union no. L142, May 31, 2008.
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 103: "Boiling Point", July 27, 1995.
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7220: "Boiling Point/Boiling Range", August 1996.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Not further details specified in the study report
Key result
Atm. press.:
1 013.25 hPa
Decomposition:
yes
Decomp. temp.:
> 250 °C
Remarks on result:
not determinable
Remarks:
Due to decomposition of the test substance

Preliminary test

The TGA-curve of the test item is shown in Figure 1. At approximately 70°C a mechanical shock was observed. This did not influence the measurement. From 200°C upwards the weight of the sample decreased significantly. At 272°C the sample weight had decreased by 25%.

After the experiment no test item was observed in the sample container.

 

Main study

One minor and one major endothermic peak between 125°C and 175°C were observed. The extrapolated onset temperature of the minor peak was 149.39°C. This signal was most probably linked to the presence of an impurity or another crystallographic species.

An endothermic peak was observed between 250°C and 325°C. The effect was most likely obtained due to reaction and/or decomposition of the test item. After the experiment, a small amount of black residue remained in the sample container.

A closed sample container was applied to investigate the endothermic peak between 250°C and 325°C.

During cooling no effects were observed which were due to crystallization of the test item (results are archived in the raw data).

During the second heating a glass transition was observed between 25°C and 50°C. The inflection point of the glass transition was 40.53°C. An exothermic peak was observed between 50°C and 125°C. The effect was obtained due to cold crystallization of the test item.

The endothermic peak between 250°C and 325°C did not shift to higher temperatures. It supported that reaction and/or decomposition of the test item was the reason for the endothermic effect. After the experiment, a small amount of black residue remained in the sample container.

Conclusions:
Reaction and/or decomposition of Lowinox® 22IB46 was observed during DSC experiments at temperatures of > 250°C (> 523K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.
Executive summary:

The purpose of the study was to determine the physico-chemical properties for Lowinox® 22IB46.

 

The boiling temperature of the test item were determined using differential scanning calorimetry (DSC) in accordance with the following guidelines:

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.2: “Boiling Temperature”, Official Journal of the European Union no. L142, May 31, 2008.

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 103: "Boiling Point", July 27, 1995.

United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7220: "Boiling Point/Boiling Range", August 1996.

 

Reaction and/or decomposition of Lowinox® 22IB46 was observed during DSC experiments at temperatures of > 250°C (> 523K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.

Description of key information

Determination of the boiling temperature could not obtained in a GLP accredited laboratory study using DSC in accordance with EU Method A.2, OECD Guideline 103 and US EPA Procedure OPPTS 830.7220.

Key value for chemical safety assessment

Additional information

Reaction and/or decomposition of Lowinox® 22IB46 was observed during DSC experiments at temperatures of > 250°C (> 523K). Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.

Categories Display