2-Naphthalenol, 1-[2-[2-ethyl-4-[2-(2-ethylphenyl)diazenyl]phenyl]diazenyl]-, ar-heptyl derivs.

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

GLP compliance:

yes

Test material

Test material information

1

Reference substance name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Cas Number:

1401000-07-4

Molecular formula:

Not applicable (UVCB Substance)

IUPAC Name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Test material form:

solid

Specific details on test material used for the study:

Batch number: 80-47-16

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Remarks on result:

not thermal sensitive if heated under defined confinement

Small-scale preliminary tests 2

Parameter:

sensitiveness to impact: impact energy (J)

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Small-scale preliminary tests 3

Parameter:

sensitiveness to friction: friction load (N)

Remarks on result:

not sensitive to friction using a friction load of 360 N

Any other information on results incl. tables

Preliminary Test

 For safety reasons, a preliminary test was carried out to establish safe conditions for the performance of the definitive test. A very small sample (about 10 mg) of the test item was subjected to heating without confinement in a Bunsen flame.

 

Thermal Sensitivity (Effect of a flame)

The test item was filled into the tube in three equal increments of about 9 cm³, each increment being gently consolidated by applying a force of 80 N to the surface. Care was taken to avoid bubbles during filling.

Heating was applied at a fixed rate by four standard gas burners located around the steel tube. The burners were adjusted so that the tip of the internal blue core of the flame almost touches the tube.

Two series of three tests were performed, the first series using a nozzle-plate with a hole 6 mm diameter and the second series using a nozzle-plate with hole of 2 mm diameter.

The three tests with 6 mm diameter orifice plate showed similar behaviour:

After about 59 s, flame more intense;

After about 72 s intense phase characterized by generation of smoke. The sample was expelled from the orifice;

End of intense phase after about 175 seconds;

End of all phenomena after about 258 seconds.

The three tests with 2 mm diameter orifice plate showed a similar behaviour to those with 6 mm diameter orifice plate but with a more intense flame.

During the six tests performed on the sample, no explosion occurred during 5 minutes.

The test result is considered negative.

 

Mechanical Sensitivity (Shock)

The test item in powdered form sieved all that passes through the sieve mesh 0.5mm was placed in a die device, with a cylindrical measure of 40 mm³, which was then centred on a steel anvil. Six tests were performed by dropping a guided 10 kg steel hammer weight from a height of 0.4 m (40 J) onto the die device containing the sample.

No evidence of ignition, explosion or decomposition was obtained during the series of six tests at 40 J performed on the sample.

The test result is considered negative.

 

Mechanical Sensitivity (Friction)

An aliquot of 10 mm³of test item sieved all that passes through the sieve mesh 0.5mm were placed onto a standard porcelain plate, and brought into contact with a weighted, standard porcelain peg by moving the plate, to and fro, over a distance of 10 mm once in 0.44 seconds.

A series of six tests were performed with a 360 N loading.

 No explosion was obtained during the tests (crepitation and/or a report or bursting into flame are equivalent to explosion).

The test result is considered negative.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The test item is not considered as explosive.