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Diss Factsheets

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:
October 26, 2011 - January 13, 2012
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
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6316 (Explodability)
Deviations:
no
GLP compliance:
no
Key result
Parameter:
sensitiveness to friction: friction load (N)
Remarks on result:
negative (not further specified)
Key result
Parameter:
thermal sensitivity - Koenen test: limiting diameter (mm)
Remarks on result:
negative (not further specified)
Parameter:
other: Mechanical Sensitivity (Shock)
Remarks:
migrated information
Remarks on result:
negative (not further specified)

Thermal Stability


TheDSC-measurement in closed stainless steel crucibles showed noendothermic or exothermic effects up to the leakage of the crucible at approximately 328 °C. The leakage was most likely caused by the vapour pressure of water a main component of the test item.


 


 


Explosive Properties


Due to the high pressure caused by the evaporation of the test item and the leakage of the crucibles the measurement could not be carried out until 500 °C. Therefore the test on explosive properties was performed.


Mechanical sensitivity (friction):


No explosion was observed within 6 tests using a pin load with 360 N.


 


Mechanical Sensitivity (Shock):


No explosion within 6 tests using a mass of 10 kg falling from a height of 0.4 m was observed.


 


Thermal sensitivity:


Three tests with a circular nozzle plate with a hole of 2 mm diameter were performed. The following table gives the results of the tests on thermal stability.


 










































Test


no.



Weight of


test item


(g)



Nozzle


width


(mm)



t1


(s)



t2


(s)



Reaction



Appearance;


Number of


Fragments



1



26.6



2.0



90



> 300



flame



0



2



26.7



2.0



100



> 300



flame



0



3



27.0



2.0



95



> 300



flame



0



 


t1: time to any reaction, e.g. whistle or flame


t2: time to main reaction, e.g. rupture of tube or flashing


The test on thermal sensitivity carried out with a nozzle with a diameter of 2.0 mm showed no explosion. Compared to the nozzle with a diameter of 6.0 mm the venting area of the nozzle with 2.0 mm is smaller by an order of magnitude. Additionally the main compound of the test item is water (84.6 %) which has no explosives properties on its own. Due to these facts an explosion with a nozzle width of 6.0 mm is excluded.

Interpretation of results:
GHS criteria not met
Executive summary:

Explosive Properties


The test item has no danger of explosion according to the explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, method A.14..

Description of key information

The test item is not explosive.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

The test item has no danger of explosion according to the explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, method A.14.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008
Based on the structure of the molecule and taking into account the provisions laid down in Regulation (EC) No 1272/2008 (CLP), as amended for the eighteenth time in Regulation (EU) 2022/692., the test item does not have to be classified with respect to explosiveness.