2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide]

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

28 September 2009 - 07 October 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study performed according to EU test method, OPPTS guideline and OECD screening test

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6316 (Explodability)

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: OECD 113 (screening test for thermal stability and stability in air)

Test material

Test material information

Constituent 1

Reference substance name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide]

EC Number:

226-939-8

EC Name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide]

Cas Number:

5567-15-7

Molecular formula:

C36H32Cl4N6O8

IUPAC Name:

2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide]

Test material form:

solid: nanoform

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Parameter:

sensitiveness to friction: friction load (N)

Value:

360

Remarks on result:

not sensitive to friction using a friction load of 360 N

Small-scale preliminary tests 2

Parameter:

sensitiveness to impact: impact energy (J)

Value:

40

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Small-scale preliminary tests 3

Parameter:

thermal sensitivity - Koenen test: limiting diameter (mm)

Value:

2

Remarks on result:

not thermal sensitive if heated under defined confinement

Any other information on results incl. tables

Thermal Stabilitv

The DSC-measurements in closed glass crucibles showed an exothermal decomposition at onset temperatures of 337° and 335°C with an energy of 606 J/g and 666 J/g respectively. The decomposition energy was above 500 J/g. Due to this fact the test on explosive properties was performed.

Explosive Properties

Mechanical sensitivity (friction):

No explosion was observed within 6 tests using a peg load with 360 N. Only a changing of colour in six tests was observed.

Mechanical Sensitivity (Shock):

No explosion within 6 tests using a mass of 10 kg falling from a height of 0.4 m (40 J) was observed.

Thermal sensitivity:

Three tests were performed with a circular nozzle plate with a hole of 2 mm diameter.

Test no.	Weight of test item (g)	Nozzle width (mm)	t1 (s)	t2 (s)	Reaction	Appearance;number of fragments
1	10.2	2.0	20.2	> 300	Burning (no explosion)	0
2	10.1	2.0	22.6	> 300	Burning (no explosion)	0
3	10.1	2.0	21.0	> 300	Burning (no explosion)	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 physical state of the test item excludes the enrichment of high-energy components caused by evaporation of volatile solvents. Due to these facts an explosion with a nozzle width of 6.0 mm is excluded.

No explosion within 3 tests using a circular nozzle plate with a hole of 2 mm diameter was observed.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Remarks:

according to regulation EC 440/2008

Conclusions:

The test item has no danger of explosion and presents no explosive properties in the meaning of the European Commission Regulation (EC) No. 440/2008, A.14.

Executive summary:

Explosive properties of the test substance were examined in a study according to EU test method A.14 as well as OPPTS and OECD guidelines. The test substance possesses no explosive properties.