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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21 August 2015 to 11 September 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed in accordance with OECD, EU and US EPA test guidelines in compliance with GLP and reported with a valid GLP certificate.
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Atm. press.:
1 013.25 hPa
Decomposition:
yes
Decomp. temp.:
350 °C
Remarks on result:
other: 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.

Preliminary test

The TGA-curve of the test item is shown in Figure 1. From 375°C upwards the weight of the sample decreased significantly. At 398°C the sample weight had decreased by 25%.

After the experiment, light brown residue was observed on the lid of the sample container and a brown molten residue remained in the sample container (original colour: white to off-white). The change of the colour indicated reaction and/or decomposition of the test item.

 

Main study

An endothermic peak started from 350°C. The effect was due to reaction and/or decomposition of the test item. After the experiment, a light brown molten residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

Conclusions:
Reaction and/or decomposition of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate] was observed during DSC experiments at temperatures of > 350°C (> 623K).
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 boiling temperature of the test item were determined using differential scanning calorimetry (DSC).

 

The study was performed 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.

 

The standard boiling temperature is defined as the temperature at which the vapour pressure of a liquid is the same as the standard pressure (1013.25 hPa).

 

From 375°C upwards the weight of the sample decreased significantly. At 398°C the sample weight had decreased by 25%.

After the experiment, light brown residue was observed on the lid of the sample container and a brown molten residue remained in the sample container (original colour: white to off-white). The change of the colour indicated reaction and/or decomposition of the test item.

 

An endothermic peak started from 350°C. The effect was due to reaction and/or decomposition of the test item. After the experiment, a light brown molten residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

 

Reaction and/or decomposition of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diylbis[3-(dodecylthio)propionate] was observed during DSC experiments at temperatures of > 350°C (> 623K).

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

The test item has no boiling temperature.

Key information obtained in GLP accredited laboratory test using DSC method in accordance with OECD Guideline 103, EU Method A.2 and US EPA Procedure 830.7220.

Key value for chemical safety assessment

Additional information

The boiling temperature of the test item were determined using differential scanning calorimetry (DSC).

 

The standard boiling temperature is defined as the temperature at which the vapour pressure of a liquid is the same as the standard pressure (1013.25 hPa).

 

From 375°C upwards the weight of the sample decreased significantly. At 398°C the sample weight had decreased by 25%.

After the experiment, light brown residue was observed on the lid of the sample container and a brown molten residue remained in the sample container (original colour: white to off-white). The change of the colour indicated reaction and/or decomposition of the test item.

 

An endothermic peak started from 350°C. The effect was due to reaction and/or decomposition of the test item. After the experiment, a light brown molten residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

 

Reaction and/or decomposition of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diylbis[3-(dodecylthio)propionate] was observed during DSC experiments at temperatures of > 350°C (> 623K).

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.