Registration Dossier
Registration Dossier
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EC number: 220-425-7 | CAS number: 2760-98-7
Explosiveness
Administrative data
- Endpoint:
- explosive properties of explosives
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 November 2017 - 11 January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
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 (2015)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- Isophthalohydrazide
- EC Number:
- 220-425-7
- EC Name:
- Isophthalohydrazide
- Cas Number:
- 2760-98-7
- Molecular formula:
- C8H10N4O2
- IUPAC Name:
- isophthalohydrazide
- Test material form:
- solid: particulate/powder
- Details on test material:
- Appearance: White crystal powder
Test item storage: At room temperature
Constituent 1
- Specific details on test material used for the study:
- The substance is an organic substance.
Results and discussion
Small-scale preliminary testsopen allclose all
- Key result
- Parameter:
- other: exothermic decomposition energy [J/g]
- Value:
- 161.4
- Key result
- Parameter:
- other: onset of the exothermic decomposition [°C]
- Value:
- 250
Any other information on results incl. tables
With both experiments, a small endothermic peak between 200°C and 230°C was observed. It was most obtained due to melting of the test item.
Also in both experiments an exothermic decomposition effect starting at 230°C was observed.
The extrapolated onset temperature of the exothermic effect in the first experiment was 248.297°C and 251.581°C in the second test.
The exothermic decomposition energy was 161.62 J/g in the first experiment and 161.17 J/g in the second test.
After the experiments, a black charred expended residue remained at the bottom of the sample container and some residue was observed at the outside of the sample lid. The sample lid was swollen due to pressure. It indicated reaction and/or decomposition of the test item during the test.
Mean (n=2) exothermic decomposition energy: 161.4 J/g.
Mean (n=2) onset temperature: 250°C.
DSC curves the experiments: see illustration.
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 were determined by DSC in a GLP study. From duplicate measurements the onset of exothermic decomposition was determined to be 250°C and the exothermic decomposition energy was determined to be 161.4 J/g. Because the exothermic decomposition energy of the substance is < 500 J/g the acceptance procedure for Class 1 explosives do not have to be applied. The substance has no explosive properties.
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