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Diss Factsheets

Physical & Chemical properties

Explosiveness

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Administrative data

Endpoint:
explosiveness
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Study initiation 30th October 2002, Experimental phase 13th November 2002-17th January 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Meets the criteria for classification as Reliable without restriction according to Klimisch et al (1997)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
443-510-2
EC Name:
-
Cas Number:
738587-10-5
Molecular formula:
C26H14N10Ni2O18S4 as free acid
IUPAC Name:
dinickel(2+) sodium 3-carboxy-5-[(1E)-2-(7-oxido-2,6-disulfonaphthalen-1-yl)diazen-1-yl]-1H-1,2,4-triazol-1-ide 3-carboxy-5-[(1E)-2-(7-oxido-2-sulfo-6-sulfonatonaphthalen-1-yl)diazen-1-yl]-1H-1,2,4-triazol-1-ide

Results and discussion

Small-scale preliminary testsopen allclose all
Parameter:
other: More sensitive to shock than m-dinitrobenzene
Remarks:
migrated information
Remarks on result:
negative (not further specified)
Parameter:
other: More sensitive to friction than m-dinitrobenzene
Remarks:
migrated information
Remarks on result:
negative (not further specified)
Parameter:
other: Explosive under influence of flame
Remarks:
migrated information
Remarks on result:
negative (not further specified)

Any other information on results incl. tables

Results Mechanical Sensitivity (shock):

Sample preparation: Sieved to </= 500µm.

Test conditions: Sample volume = 40 mm3

                         Drop weight = 10 kg

                        Drop height = 0.40 m

Impact energy = 40 Joules

 
 TEST NUMBER  1.  2.  3.  4.  5.  6.
 OBSERVATION  N  N  N  N  N  N

Where N = No signs of ignition or explosion on impact. When the test assembly was dismantled after the trial, there were no signs of decomposition.

Results Mechanical Sensitivity (friction):

Sample preparation: Sieved to <500µm.

Test Conditions: Sample volume = 10mm3

Weight identity = No.9

Position = No. Vi

Frictional load = 360 Newtons

 
 TEST NUMBER  1.  2.  3.  4.  5.  6.
 OBSERVATION  N  N N  N

Where N = No reaction. Results Thermal sensitivity:

Where N = No reaction.

Results Thermal sensitivity:

Sample preparation: Tested as received.

The results of the six tests are detailed in Table 1 below

Where:

0 = Tube recovered unchanged,

t1 = Time elapsed from ignition of burners to the first noticeable reaction of the test substance

and tz = Time elapsed from t1 to the end of the reaction.

Comments:

(i) During each test after a time t1 (see Table 1) and lasting for a time tz, the test material vented with flame and incandescent particles, through the orifice.

(ii) No explosions occurred and each test was suspended after a total heating period of 5 minutes.

Table 1: Koenen Steel Tube Results

 
 Test number  Orifice diameter  Tube condition  t1  t2
 1.  6mm  O  35s  265s
 2.  6mm  O  33s  267s
 3.  6mm  O  32s  268s
 4.  2mm  O  33s  267s
 5.  2mm  O  31s  269s
 6.  2mm  O  29s  271s

Applicant's summary and conclusion

Interpretation of results:
non explosive
Remarks:
Migrated information
Conclusions:
Explosive Classification - NOT CLASSIFIED
The test substance did not give a positive result in tests used to determine its sensitivity to shock , friction or heating under confinement, and is
therefore not classified as an explosive in accordance with the criteria of EU test method A 14.
Executive summary:

Introduction:

The EU Method usesd was A.14 (Explosive properties) this covered , mechanical sensitivity (shock and friction) and thermal sensitivity.

Results and conclusions:

Explosive Classification - NOT CLASSIFIED

The test substance did not give a positive result in tests used to determine its sensitivity to shock , friction or heating under confinement, and is therefore not classified as an explosive in accordance with the criteria of EU test method A 14.