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

Explosiveness

Administrative data

Endpoint:

explosiveness

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:

other: 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

IUPAC Name:

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

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Parameter:

other: More sensitive to shock than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 2

Parameter:

other: More sensitive to friction than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 3

Parameter:

other: Explosive under influence of flame

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 4

Parameter:

other: Explosive (not specified)

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Any other information on results incl. tables

Thermal Stabilitv

The DSC-measurements in closed glass crucibles showed an exothermal decomposition in the temperature range 315 - 360 °C with an energy of 606 J/g and 666 J/g respectively. The heat of decomposition was above 500 J/g. Due to this fact the test on explosion 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 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:

non explosive

Remarks:

Migrated information

Conclusions:

The test item has no danger of explosion and presents no explosive properties in the sense 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.