Registration Dossier

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:
2018-11-02 to 2018-11-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.14 (Explosive properties)
Deviations:
no
GLP compliance:
no
Key result
Parameter:
other: decomposition energy
Value:
381
Remarks on result:
negative (not further specified)

Three DSC-measurements in a closed glass crucibles with the test item showed several endothermal effects in the temperature range of 40-60°C, 60-80 °C, 125-140 °C and 155-170 °C. In the temperature range of 350-470 °C one exothermal effect with a maximum energy release of 313 J/g occurred

 

Thermal stability (DSC measurements)

Ident-No.

Weight
/mg

Final temperature

/°C

Temperature range

/°C

Type of effect

Energy
/J/g

36323

11.11

300

45-60
60-80
125-140
155-170

Endothermal
Endothermal
Endothermal
Endothermal

n.r.
n.r.
n.r.
n.r.

36326

9.75

500

40-60
60-80
125-140
350 - 465

Endothermal
Endothermal
Endothermal
Exothermal

n.r.
n.r.
n.r.
313

36334

10.82

500

45-60
60-80
125-140
390 - 470

Endothermal
Endothermal
Endothermal
Exothermal

n.r.
n.r.
n.r.
222

n.r.: not relevant

4.3.2 Explosive properties

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

Interpretation of results:
GHS criteria not met
Conclusions:
The test item had no explosive properties.
Executive summary:

A study was conducted according to Regulation (EC) No 440/2008 method A.14 to determine the explosive properties of the test item. A screening test on thermal stability using differential scanning calorimetry (DSC) under nitrogen was performed. The test item and the reference were heated up from ambient to the final temperature at a constant heating rate (3 K/min) in a defined atmosphere (nitrogen). Closed crucibles were used as containers for the test item and the reference. The quantity of heat absorbed or released was measured and recorded. Three DSC-measurements in a closed glass crucibles with the test item showed several endothermal effects in the temperature range of 40-60°C, 60-80°C, 125 - 140 °C and 155 - 170 °C. In the temperature range of 350 - 470 °C one exothermal effect with a maximum energy release of 313 J/g occurred. The heat of decomposition was below 500 J/g. Therefore the main test on explosive properties had not to be performed. In conclusion, the test item had no explosive properties.

Description of key information

The test item had no explosive properties (reference 4.14-1).

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

A study was conducted according to Regulation (EC) No 440/2008 method A.14 to determine the explosive properties of the test item. A screening test on thermal stability using differential scanning calorimetry (DSC) under nitrogen was performed. The test item and the reference were heated up from ambient to the final temperature at a constant heating rate (3 K/min) in a defined atmosphere (nitrogen). Closed crucibles were used as containers for the test item and the reference. The quantity of heat absorbed or released was measured and recorded. Three DSC-measurements in a closed glass crucibles with the test item showed several endothermal effects in the temperature range of 40-60°C, 60-80°C, 125 - 140 °C and 155 - 170 °C. In the temperature range of 350 - 470 °C one exothermal effect with a maximum energy release of 313 J/g occurred. The heat of decomposition was below 500 J/g. Therefore the main test on explosive properties had not to be performed. In conclusion, the test item had no explosive properties.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

Based on the test results and taking into account the provisions laid down in Regulation (EC) No 1272/2008, as amended for the twelfth time in Regulation (EC) 2019/521, the substance is not considered to be classified for explosiveness.