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Physical & Chemical properties

Stability: thermal, sunlight, metals

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Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: EU Method A2 and OECD Guideline 103
GLP compliance:
yes
Test substance thermally stable:
yes
Operating temp.:
400 °C
Sublimation:
no
Transformation products:
no
Conclusions:
The test item was stable up to 400 °C (673 K) at 101.5 kPa by differential scanning calorimetry,
Executive summary:

Method

The determination was carried out by differential scanning calorimetry (DSC) using a procedure designed to be compatible with Method A2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

Conclusion

The test item was stable up to 400 °C (673 K) at 101.5 kPa by differential scanning calorimetry,

Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
24 October 2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
Thermal characteristics of the test item were investigated using thermogravimetric analysis (TGA).
GLP compliance:
not specified

- The thermograph resulting from the investigation is attached.

- Using a maximum temperature ramp of 10 °C per minute with a resolution of 3 in an atmosphere of nitrogen, overall weight loss onset of the test item was found to occur at 246 °C.

- The weight loss event of the test item appeared at a derivative peak of 277 °C and accounted for 99.87 % weight loss.

Conclusions:
Using a maximum temperature ramp of 10 °C per minute with a resolution of 3 in an atmosphere of nitrogen, overall weight loss onset of the test item was found to occur at 246 °C. The weight loss event of the test item appeared at a derivative peak of 277 °C and accounted for 99.87 % weight loss.
Executive summary:

Using a maximum temperature ramp of 10 °C per minute with a resolution of 3 in an atmosphere of nitrogen, overall weight loss onset of the test item was found to occur at 246 °C. The weight loss event of the test item appeared at a derivative peak of 277 °C and accounted for 99.87 % weight loss.

Endpoint:
thermal stability
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: analogue substance
Justification for type of information:
Investigation of thermal stability is not required because available data indicate that structural variation does not influence test results or adverse effect profile (see read-across and category justifications attached in Section 13).
Reason / purpose:
read-across source
Test substance thermally stable:
yes
Key result
Operating temp.:
400 °C
Sublimation:
no
Transformation products:
no

Description of key information

The analogue test item was stable up to 400 °C (673 K) at 101.5 kPa by differential scanning calorimetry,

Additional information

The analogue test item was stable up to 400 °C (673 K) at 101.5 kPa by differential scanning calorimetry,

Justification for classification or non-classification

The test material is thermally stable up to 400 °C.