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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:
29 April 2015 to 2 September 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to EU, OECD and EPA test guidelines to a GLP recognised standard
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Remarks on result:
other: Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.
Conclusions:
Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.
Executive summary:

The melting and boiling temperature of the test substance were determined using differential scanning calorimetry (DSC). This technique records the difference in heat flow of two crucibles, one filled with test substance and the other left empty as reference, while these crucibles are subjected to a controlled temperature programme. A transition of the test substance, such as melting or evaporation, is indicated by a deviation from the base line in the heat flow record. Because melting and evaporation are processes in which heat is consumed, the deviation from the base line is in the endothermic direction for these processes. The melting temperature or boiling temperature (if any) of the test substance is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting or evaporation peak.

 

Test was conducted in accordance to:

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 (1,2-Dioxoethylen)bis(iminoethylen)bis[3-(3,5-di-tert-butyl-4 -hydroxyphenyl)propionat] was observed during DSC experiments starting at 275°C (548K). Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.

Description of key information

Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.

Key value for chemical safety assessment

Additional information

Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.