Disodium 4,4'-bis[[1-[[(2,4-dimethylphenyl)amino]carbonyl]-2-oxopropyl]azo][1,1'-biphenyl]-2,2'-disulphonate

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 12 April 2016 to 13 April 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:

other: UN Manual of Tests and Criteria, Appendix 6 "Screening procedures" -Screening procedures for substances which may have explosive properties.

Version / remarks:

Rev. 6

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Reference

Name:

Unnamed

Type:

Constituent

Test material form:

solid: particulate/powder

Details on test material:

- Appearance: yellow/brown powder
- Storage conditions: in refrigerator (2-8°C)

Specific details on test material used for the study:

-The substance contains chemical groups associated with explosive properties.
-The oxygen balance is > -200 (i.e. -154)
-The substance is an organic substance.

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Key result

Parameter:

other: exothermic decomposition energy [J/g]

Value:

116.5

Small-scale preliminary tests 2

Key result

Parameter:

other: onset of the exothermic decomposition [°C]

Value:

360.9

Any other information on results incl. tables

DSC curve of the first experiment: see picture below.

Exothermic decomposition started at 350°C. The extrapolated onset temperature of the effect was 358.588°C (first experiment), 363.260°C (second experiment) and 363.202°C (third experiment).

The exothermic decomposition energy was 111.17 J/g (first experiment), 137.10 J/g (second experiment) and 121.75 J/g (third experiment).

In the second experiment a higher amount of test item was applied to enhance the exothermic peak. Therefore these results were not used for the calculation of the mean values.

Mean (n=2) exothermic decomposition energy: 116.5 J/g.

Mean (n=2) onset temperature: 360.9°C.

Applicant's summary and conclusion

Interpretation of results:

other: not classified under CLP or GHS

Conclusions:

The test item has no explosive properties.

Executive summary:

The exothermic decomposition energy and onset of exothermic decomposition of the substance was determined by DSC in a GLP study. From duplicate measurements the onset of exothermic decomposition was determined to be 360.9°C and the exothermic decomposition energy was determined to be 116.5 J/g. Because the exothermic decomposition energy of the substance is < 500 J/g and the onset of exothermic decomposition is < 500°C, the acceptance procedure for Class 1 explosives do not have to be applied accoring to the UN Manual of Tests and Criteria, Appendix 6 "Screening procedures" -Screening procedures for substances which may have explosive properties. The substance has no explosive properties.