Registration Dossier

Administrative data

explosive properties of explosives
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than - 200

Data source

Materials and methods

Test guideline
according to guideline
other: Oxygen Balance Calculator

Test material

Test material form:
solid: particulate/powder

Results and discussion

Small-scale preliminary tests
Remarks on result:
not measured/tested
Results of test series for explosives
Remarks on result:
not measured/tested

Any other information on results incl. tables

Both of the main constituents of the substance contain an azo group, which is a known structural alert for explosivity. In addition, the oxygen balance value of each constituent is a greater positive than -200 (constituent 1: -58.6; constituent 2: -71.5). The DSC evaluation of the melting temperature of Red EhS 237 states that "the curve drifts into the exothermic region" and that "there are indications of decomposition above 220° C". This indicates that exothermic decomposition occurs below 500° C, which is part of the criteria for judging the substance as non-explosive. In addition, the substance is not highly flammable (EU method A.10) and it is not auto-flammable up to 400° C (EU Method A.16). Based on these data, the substance is unlikely to be explosive.

Applicant's summary and conclusion

Interpretation of results:
non explosive
Migrated information
In conclusion, on the basis of structure and oxygen balance, Red EhS 237 is considered to have the potential to be explosive, however the substance has an onset of exothermic decomposition below 500 °C and it is not highly flammable or auto-flammable up to 400 °C indicating that the substance is unlikely to be explosive.