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Physical & Chemical properties

Stability: thermal, sunlight, metals

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Reference
Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015-12-08 to 2016-03-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Version / remarks:
adopted 12 th, May, 1981
Deviations:
no
Qualifier:
according to
Guideline:
other: UN recommendations on the transport of dangerous goods: Manual of Tests and Criteria, Rev. 5 (2009) and UN-Model-Regulations, Rev. 19 (2015)
Version / remarks:
2015
Deviations:
no
GLP compliance:
yes (incl. certificate)
Test substance thermally stable:
yes
Key result
Operating temp.:
210 °C
Remarks on result:
other: energy: -180J/g
Key result
Operating temp.:
470 °C
Remarks on result:
other: energy: >-230 J/g
Sublimation:
not determined
Transformation products:
not specified
Test substance stable to sunlight:
not determined
Test substance stable to metals / metal ions:
not determined

In the temperature range of 160 - 190 °C an endothermic effect was observed. An exothermic effect could be observed in the temperature range of 210 - 310 °C with an energy of approximately -180 J/g.

A second exothermal effect occurred in the temperature range of 470 to >500 °C with a decomposition energy greater -230 J/g. The effect was not finished at the maximum test temperature of 500 °C.

Conclusions:
In the DSC-measurements the test item showed an endothermic effect in the temperature range of 160-190°C. An exothermic effect could be observed in the temperature range of 210-310°C with an energy of approximately -180 J/g. A second exothermal effect occurred in the temperature range of 470 > 500°C with a decomposition energy greater -230 J/g.
SADT: Due to the fact that the exothermic effect started above 200°C it can be stated that the SADT is > 75°C.
According to the results the test item is classified as follows concerning self-reactive properties:
UN Transportation Regulation: The test item does not have to be classified as a self-reactive substance in class 4, division 4.1 since the SADT is > 75°C.
GHS (CLP Regulation EC 1272/2008 Annex 1: 2.8): The test item does not have to be classified as a self-reactive substance since the SADT is > 75°C.

Description of key information

Study according to OECD guideline 113 (adopted 1981): DSC-measurements: endothermic effect in the range of 160-190°C, exothermic effect in the range of 210-310°C with an energy of approximately -180 J/g, exothermal effect in the range of 470 > 500°C with a decomposition energy greater -230 J/g. SADT > 75°C.

Additional information

In the DSC-measurements the test item 2,4 -Bismaleimidotoluene showed an endothermic effect in the temperature range of 160-190°C. An exothermic effect could be observed in the temperature range of 210-310°C with an energy of approximately -180 J/g. A second exothermal effect occurred in the temperature range of 470 > 500°C with a decomposition energy greater -230 J/g. SADT: Due to the fact that the exothermic effect started above 200°C it can be stated that the SADT > 75°C. According to the results the test item is classified as follows concerning self-reactive properties: UN Transportation Regulation: The test item does not have to be classified as a self-reactive substance in class 4, division 4.1 since the SADT is > 75°C. GHS (CLP Regulation EC 1272/2008 Annex 1: 2.8): The test item does not have to be classified as a self-reactive substance since the SADT is > 75°C.

Justification for classification or non-classification

According to the results the test item is classified as follows concerning self-reactive properties: UN Transportation Regulation: The test item does not have to be classified as a self-reactive substance in class 4, division 4.1 since the SADT is > 75°C.

GHS (CLP Regulation EC 1272/2008 Annex 1: 2.8): The test item does not have to be classified as a self-reactive substance since the SADT is > 75°C.