Dysprosium trinitrate

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 17 September 2014 to 30 December 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Remarks on result:

not thermal sensitive if heated under defined confinement

Key result

Parameter:

sensitiveness to impact: impact energy (J)

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Key result

Parameter:

sensitiveness to friction: friction load (N)

Remarks on result:

not sensitive to friction using a friction load of 360 N

Friction test:

Six negative assays were recorded: no friction sensitivity was noted with the test item with a loading of 360 Newton. No further tests were performed.

Mechanical sensitivity (shock):

Six negative assays were recorded: no shock sensitivity was noted with the test item with a 40 J force. No further tests were performed.

Heat sensitivity (flame):

Three assays using a tube with a hole of 6-mm diameter: in the three assays, an overflowing was observed from ca. 27 s to 2 min 04 s. From 1 min 57 s to 3 min 30 s, a yellow flame of 25 cm height was observed.

Three assays using a tube with a hole of 2-mm diameter: in the three assays, an overflowing was observed from ca. 47 s to 2 min 03 s. From 1 min 32 s to 4 min 49 s, a yellow flame of 25 cm height was observed.

In conclusion: six negative assays were recorded (i.e. no effect on steel tube), no heat sensitivity was noted with the test item.

Interpretation of results:

GHS criteria not met

Conclusions:

Dysprosium trinitrate was concluded not to be explosive when exposed to friction, shock or heat.

Executive summary:

The explosive properties of dysprosium trinitrate were investigated according to EU test method A.14 in compliance with GLP. The test item has no explosive properties.

Description of key information

Dysprosium trinitrate is concluded not to be explosive.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

An experimental study of reliability 1 according to Klimisch, performed in compliance with GLP and according to EU method A.14, was selected as a key study.

The study did not observe explosivity of the test item upon friction, heat, or shock. Although under GHS and CLP, the EU method A.14 is not sufficient for concluding on explosive properties, the conclusion that the substance is not explosive is supported by the fact that it does not contain any structural groups that are indicative of explosive properties and hence, under GHS and CLP, a study according to the relevant UN testing series is not required.

Justification for classification or non-classification

The experimental data (EU method A.14) show that dysprosium trinitrate is not sensitive to friction, shock or heat.

Although under GHS and CLP, the EU method A.14 is not sufficient for concluding on explosive properties, the conclusion that the substance is not explosive is supported by the fact that it does not contain any structural groups that are indicative of explosive properties and hence, under GHS and CLP, a study according to the relevant UN testing series is not required.