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EC number: 229-314-8 | CAS number: 6471-50-7
Explosiveness
Administrative data
- Endpoint:
- explosiveness
- Type of information:
- migrated information: read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- 04 April to 01 June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (EU A.14Guideline study (EU A.14), UN Transport Regulations: UN-Tests 1b/2b, 3a (ii), 3b (i) respectively)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.14 (Explosive properties)
- Qualifier:
- according to guideline
- Guideline:
- other: UN Transport Regulations: UN-Tests 1b/2b, 3a (ii), 3b (i)
Test material
- Reference substance name:
- 3-hydroxy-4-[(2-methyl-4-nitrophenyl)azo]-N-(o-tolyl)naphthalene-2-carboxamide
- EC Number:
- 229-102-5
- EC Name:
- 3-hydroxy-4-[(2-methyl-4-nitrophenyl)azo]-N-(o-tolyl)naphthalene-2-carboxamide
- Cas Number:
- 6410-32-8
- IUPAC Name:
- 3-hydroxy-4-[(2-methyl-4-nitrophenyl)diazenyl]-N-(2-methylphenyl)-2-naphthamide
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Results and discussion
Small-scale preliminary testsopen allclose all
- Parameter:
- other: More sensitive to shock than m-dinitrobenzene
- Remarks:
- migrated information
- Remarks on result:
- not measured/tested
- Parameter:
- other: More sensitive to friction than m-dinitrobenzene
- Remarks:
- migrated information
- Remarks on result:
- not measured/tested
- Parameter:
- other: Explosive under influence of flame
- Remarks:
- migrated information
- Remarks on result:
- negative (not further specified)
- Parameter:
- other: Explosive (not specified)
- Remarks:
- migrated information
- Remarks on result:
- negative (not further specified)
Any other information on results incl. tables
Residual moisture:
The test item contains a residual moisture of 0.1 wt.%, which was determined by drying thetest item under vacuum.
Thermal stability (DSC):
In the temperature range from 280-290 °C an endothermic effect was observed, which leads straight into an exothermic effect from 290-360 °C, with an average decomposition energy of -700 J/g. Due to the decomposition energy being above 500 J/g, the main tests on explosive properties had to be carried out.
Heating under confinement: Koenen-Test UN-Test: 1 (b) / 2 (b)
Tests with orifice plates with 1.0 and 2.0 mm diameter orifice were performed.
No. |
Sample |
Diameter orifice plate /mm |
Reaction |
Reaction |
Reaction |
Appearance of tube |
1 |
8.53 |
1 |
19 |
>300 |
t1: Sparkling t2: No reaction |
0, Slight deformation |
2 |
8.35 |
1 |
19 |
>300 |
t1: Sparkling t2: No reaction |
0, Unchanged |
3 |
8.20 |
1 |
21 |
>300 |
t1: Sparkling t2: No reaction |
0, Unchanged |
4 |
8.78 |
2 |
26 |
>300 |
t1: Sparkling t2: No reaction |
0, Unchanged |
5 |
8.20 |
2 |
23 |
>300 |
t1: Sparkling t2: No reaction |
0, Unchanged |
6 |
8.44 |
2 |
24 |
>300 |
t1: Sparkling t2: No reaction |
0, Unchanged |
t1: time to first reaction: e.g. burning; t2: time to main reaction: e.g. frizzling, bursting of tube
The test item shows no reaction with either an orifice plate with a orifice-diameter of 1mm or 2 mm on heating under confinement. The result is considered "-". Due to the chemical structure and the physical state (pure solid) an explosion for an orificediameter of 6 mm can be excluded.
The Koenen-Test (UN-Test 1(b) / 2(b)) of the test item shows no effect an heating under confinement with an orifice plate with an orifice diameter of 1 or 2 mm. The assessment of the results with regard to test series 1 (b) was "-". The assessment of the results with regard to test series 2 (b) was "-".
Mechanical sensitivity: Friction: BAM Friction Apparatus UN-Test: 3 (b) (i)
No explosion was observed within 6 tests using a 360 N loading.
The assessment of the results with regard to test series 3 (b) (i) was "-".
Mechanical sensitivity: Impact: BAM Fallhammer UN-Test: 3 (a) (ii)
No explosion was observed within 6 tests dropping the 10 kg mass from 0.50 m (50 J).
The assessment of the results with regard to test series 3 (a) (ii) was "-".
Applicant's summary and conclusion
- Interpretation of results:
- non explosive
- Remarks:
- Migrated information
- Conclusions:
- The test item does not have to be classified as explosive in Class 1 according to the UN-Transport Regulations. The test item does not have to be classified as explosive according to GHS and EC 1272/2008 (CLP-Guideline) Annex 1:2.1. The test item has no explosive properties according to EC 440/2008, Part A, A.14.
- Executive summary:
It was tested whether the test item shows some effect on heating under confinement according to UN-Test series 1 (b) / 2 (b) (Koenen-Test), is sensitive to impact according to UN-Test series 3 (a) (ii) (BAM Fallhammer) or is sensitive to friction according to UN-Testseries 3 (b) (i) (BAM friction apparatus) (Class 1). The test item was negative in these tests. The test item is not explosive.
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