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Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
Version / remarks:
Regulation (EC) 440/2008 of 30 May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD Test Guideline 113
Version / remarks:
May 1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Version / remarks:
ST/SG/AC.10/11/Rev.5 (2009)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Parameter:
other: exothermic decomposition
Remarks:
calometric analysis
Remarks on result:
not thermal sensitive if heated under defined confinement
Remarks:
No exothermic effects detected.

Thermal Stability:

In both measurements an endothermic effect (melting) can be observed in the temperature range of 150 – 170 °C. No further thermic effects could be observed op to the final temperature of 500 °C

 

Table 2:          Results of Thermal Stability Study

No.

Sample weight (mg)

Start (°C)

Energy (J/g)

PN14630

6.97

150

90 (endothermic)

PN14631

6.64

150

80 (endothermic)

 

Due to no exothermic decomposition occuring, further tests for explosive properties did not have to be performed. This is in accordance with the screening procedures for substances outlined in TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, 6th revised edition, New York and Geneva, 2015; Appendix 6, 3.3 (c), p. 440.

Interpretation of results:
GHS criteria not met
Remarks:
The test item did not demonstrate exothermic thermal effects or decomposition when subject to calometric analysis inline with the screening procedures for substances which may have explosive properties prescribed in the United Nation's Transport of Dangerous Goods: Manual of Tests and Criteria, 6th revised edition.
Conclusions:
The test item is not explosive.
Executive summary:

EU Methods A.14. – The explosiveness of the test item was determined using procedures designed to be compatible with Method A.14., Explosive Properties, of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Aliquots of test item (7 mg) were transferred into glass crucibles under atmospheric conditions.  Each crucible was sealed and reweighed.  The thermal stability each sample was determined Differential Scanning Calorimetry, using a glass crucible containing aluminium oxide as a reference.  Both sample and reference crucibles were heated up from room temperature to 500 °C at a rate of 3 K/min.

In both measurements, an endothermic effect (melting) can be observed in the temperature range of 150 – 170 °C.  No further thermal effects were observed up to a final temperature of 500 °C.  In line with guideline requirements a main study was not conducted, calorimetric data demonstrates that the substance is incapable of rapid decomposition with the evolution of gases or release of heat.

The test item cannot be classified as explosive in accordance with Commission Regulation (EC) No 1272/2008 (Classification Labelling and Packaging) of 16 December 2008.

Description of key information

Explosiveness: Not explosive; OECD 113; J Kremer (2017)

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

EU Methods A.14. – The explosiveness of the test item was determined using procedures designed to be compatible with Method A.14., Explosive Properties, of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Aliquots of test item (7 mg) were transferred into glass crucibles under atmospheric conditions.  Each crucible was sealed and reweighed.  The thermal stability each sample was determined Differential Scanning Calorimetry, using a glass crucible containing aluminium oxide as a reference.  Both sample and reference crucibles were heated up from room temperature to 500 °C at a rate of 3 K/min.

In both measurements, an endothermic effect (melting) can be observed in the temperature range of 150 – 170 °C.  No further thermal effects were observed up to a final temperature of 500 °C.  In line with guideline requirements a main study was not conducted, calorimetric data demonstrates that the substance is incapable of rapid decomposition with the evolution of gases or release of heat.

The test item cannot be classified as explosive in accordance with Commission Regulation (EC) No 1272/2008 (Classification Labelling and Packaging) of 16 December 2008.

Justification for classification or non-classification

The substance does not meet classification criteria in accordance with Regulation (EC) No 1272/2008 (CLP).