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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 Jan - 10 Jan 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.14 (Explosive properties)
Version / remarks:
adopted in 2008
Deviations:
no
Qualifier:
according to
Guideline:
other: OECD 113 Screening test for thermal stability and stability in air
GLP compliance:
no
Specific details on test material used for the study:
Storage conditions: Ambient temperature (10 to 30 °C), dry
Parameter:
other: Thermal stability via DSC measurement.
Remarks on result:
other: The heat of decomposition was < 500 J/g. The main test on explosive properties was not required.

Results
Thermal Stability
An endothermal effect in the temperature range of 160 to 185 °C was seen. No further endothermal nor exothermal effects were seen until the test end temperature at 500 °C. The test item showed a discolouring from white to black/brown after the test.

The second DSC measurement in a closed high pressure crucible under nitrogen with the test item showed 3 endothermal effects in the ranges of 150 to 180 °C, 190 to 235 °C and 245 to 450 °C. No further endothermal nor exothermal effects were seen until the test end temperature at 500 °C. The test item showed a discolouring from white to black/brown after the test. Results are summarized in Table 1.

Table 1 – Thermal Stability (DSC measurements)

Weight [mg]

Final temperature [°C]

Temperature range [°C]

Type of effect

Energy [J/g]

10.77

500

160 – 185

Endothermal

n.r.

11.08

150 – 180
190 – 235
245 - 450

Endothermal

n.r.

n.r.: not relevant

Explosive Properties
The heat of decomposition was below 500 J/g, therefore the main test on explosive properties was not necessary.

Description of key information

Not explosive (EU Method A.14., Thermal Stability)

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Heat of decomposition determined by Differential Scanning Calorimetry was below 500 J/g. Main test on explosive properties not necessary.

Justification for classification or non-classification

The available data on explosive properties of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008, and are therefore conclusive but not sufficient for classification: The exothermic decomposition energy is less than 500 J/g.