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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
Study period:
7 May 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Key result
Operating temp.:
>= 230 - <= 410 °C

Two DSC-measurements in closed glass crucibles showed an endothermal effect in the temperature range of 200 - 230 °C. An exothermal effect was observed in the temperature range 230 - 410 °C with an energy of 969 J/g and 1098 J/g, respectively.

Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 to 24 November 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Key result
Operating temp.:
>= 235 - <= 420 °C

Two DSC-measurements in closed glass crucibles showed an endothermal effect in the temperature range of 190 - 225 °C and an exothermal effect in the temperature range of 235 - 420 °C with an energy release of 770 J/g and 810 J/g, respectively. No further endethermal or exothermal effects were observed up to the final temperature of 500 °C.

An optical inspection showed a black residue after the measurement.

The results of the DSC measurements are summarised in table below.

 

Thermal stability (DSC measurement)

Ident-No.

Weight / mg

Final temperature / °C

Type of effect

Temperature range / °C

Enthalpy / J/g

Remarks

35316

9.87

500

endethermal

exothermal

190 - 225

235 - 415

n.r.

-770

closed glass

crucible

35319

10.23

500

endethermal

exothermal

190 - 225

235 - 420

n.r.

-810

closed glass

crucible

 

Description of key information

The substance (technical purity) showed an endothermal effect in the temperature range of 190 - 225 °C and an exothermal effect in the temperature range of 235 - 420 °C with an energy release of 770 J/g and 810 J/g, respectively.

The substance (pure) showed an endothermal effect in the temperature range of 200 - 230 °C and an exothermal effect in the temperature range 230 - 410 °C with an energy of 969 J/g and 1098 J/g, respectively.

Additional information

Justification for classification or non-classification