4,4'-Isopropylidenediphenol, ethoxylated

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosiveness, other

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: OECD Guideline 113 - Screening Test for Thermal Stability and Stability in Air

Deviations:

no

Principles of method if other than guideline:

The sample under investigation was subjected to a controlled temperature program in a closed vessel (the temperature range of the test was 30°C to 500°C).
From the temperature difference between the sample and an inert substance, which was in thermal contact with the sample, the heat flow from or to the sample was measured as a function of the furnace temperature.

GLP compliance:

yes (incl. QA statement)

Test series:

other: not applicable

Method:

other: Differential Scanning Calorimetry

Parameter:

other: not applicable

Result:

result is considered "-" (negative)

Remarks on result:

other: The DSC curve shows decomposition at 375°C, there is no decomposition identified below this temperature. There is no decomposition or chemical transformation below 150°C showing the test substance to be stable at room temperature.

1^stReaction
Onset temperature	185°C
Peak Temperature	225°C
Energy release	20 J/g

 

2^ndReaction
Onset temperature	375°C
Peak Temperature	424°C
Energy release	>520 J/g

Interpretation of results:

non explosive

Remarks:

Migrated information

Conclusions:

A study was conducted to assess the thermal stability of the test substance, and therefore to indicate the explosive potential of the substance. The DSC curve showed decomposition of the substance at 375°C and no decomposition or chemical transformations below 150°C, indicating thermal stability of the test substance at room temperature. The test substance is not expected to have explosive properties.

Executive summary:

The thermal stability of the test material was determined in accordance with the OECD Guideline for Testing of Chemicals 113. The thermal stability study was used to indicate whether the test substance has explosive potential. The screening test for thermal stability was carried out using Differential Scanning Calorimetry (DSC). The DSC curve showed decomposition of the substance at 375°C and no decomposition or chemical transformations below 150°C. This screening test indicates that the substance is not expected to be explosive. This conclusion is supported by the lack of chemical groups in the molecule which are associated with explosive properties, in accordance with column 2 of REACH Annex VII.

Description of key information

A screening test for thermal stability and stability in air was conducted on the test substance. There was decomposition of the test substance at 375°C, with none below this temperature (within the range of the test temperatures used i.e. 30°C to 500°C). There was no decomposition or chemical transformation below 150°C, showing the test substance to be stable at room temperature. 

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

A screening study was conducted to assess the thermal stability of the test substance, and therefore to indicate whether the substance has an explosive potential. The study is considered reliable as it was conducted on the registered substance according to OECD Testing Guideline 113. The screening tests showed decomposition of the test substance at 375°C, with none below this temperature (within the range of the test temperatures used i.e. above 30°C). There was no decomposition or chemical transformation below 150°C, indicating that the test substance is thermally stable at room temperature. This screening test indicates that the substance is not expected to be explosive. This conclusion is supported by the lack of chemical groups in the molecule that are associated with explosive properties, in accordance with column 2 of REACH Annex VII.

Justification for classification or non-classification

The screening tests showed decomposition of the test substance at 375°C, with none below this temperature (within the range of the test temperatures used i.e. 30°C to 500°C). There was no decomposition or chemical transformation below 150°C, showing the test substance to be stable at room temperature. This screening test indicates that the substance is not expected to be explosive. This conclusion is supported by the lack of chemical groups in the molecule that are associated with explosive properties, in accordance with column 2 of REACH Annex VII.