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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:
2011-09-16 to 2011-09-19
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: DIN 51007
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Test material information:
Composition 1
Specific details on test material used for the study:
- Batch No.: 72487436W0
Test substance thermally stable:
yes
Key result
Operating temp.:
>= -30 - <= 500 °C
Sublimation:
not determined
Transformation products:
not measured
Test substance stable to sunlight:
not determined
Test substance stable to metals / metal ions:
not determined

1. Reaction: endothermic

- onset temperature: -20 °C

- peak temperature: 10 °C

- used heat quantity: 180 J/g

The reaction was not tested for self-accelerating decomposition behaviour.

2. Reaktion: exothermic

- onset temperature: 280 °C

- peak temperature: 388 °C

- released heat content: 1420 J/g

The reaction is self-accelerating.

Description of key information

The test item is considered to be thermaly stable at room temperature.

Additional information

A key study (BASF SE, SIK 11/1957) following the procedure in DIN 51007 was performed. The sample was observed to undergo one endothermic event during the test with an onset temperature of -20 °C with energy consumption of 180 J/g, as well as one exothermic and self accelerating event with an onset temperature of 280 °C and an energy release of 1420 J/g.

A supporting study (BASF SE, SIK 85/0293) following a procedure equivalent to DIN 51007 was performed. The sample was observed to undergo an exothermic event during the test starting at an onset temperature of 190 °C with an maximum at 270 °C and an energy release of 1200 J/g .

In both studies insignificant thermal transformation has occured below 150 °C with energy release < 100 J/g. Therefore, the test item is

considered to be thermaly stable at room temperature.

Justification for classification or non-classification