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EC number: 602-676-8 | CAS number: 12237-27-3
Explosiveness
Administrative data
- Endpoint:
- explosiveness, other
- Remarks:
- explosive properties of solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 2017 - December 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.14 (Explosive properties)
- Deviations:
- not applicable
- Remarks:
- The analysis has not yet been performed.
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113
- Deviations:
- not applicable
- Remarks:
- The analysis has not yet been performed.
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- C.I. Solvent Red 119
- EC Number:
- 602-676-8
- Cas Number:
- 12237-27-3
- Molecular formula:
- C32H22N10O8Cr
- IUPAC Name:
- C.I. Solvent Red 119
- Reference substance name:
- Unknown impurities
- Cas Number:
- not available
- IUPAC Name:
- Unknown impurities
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- water
- Test material form:
- solid: particulate/powder
Constituent 1
impurity 1
impurity 2
Results and discussion
Small-scale preliminary tests
- Key result
- Parameter:
- sensitiveness to friction: friction load (N)
- Value:
- 0
- Remarks on result:
- not sensitive to friction using a friction load of 360 N
- Remarks:
- no explosion occured
Results of test series for explosives
- Key result
- Test series:
- other: Thermal sensitivity
- Method:
- other: Circular nozzle plate
- Parameter:
- limiting diameter (mm)
- Remarks:
- 2mm
- Result:
- negative, no explosion
- Remarks on result:
- other: no explosion was shown
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The test item had no explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.14.
- Executive summary:
Individual results
1.1.1 Thermal stability
A DSC-measurement in a closed glass crucible showed an exothermal effect in the temperature range of 215 – 400 °C with an energy release of 565 J/g. The measurement was terminated at 500 °C.
Graphical presentation of the DSC run is given on page8(Figure1).The results are summarised inTable 1.
Table1: Thermal stability (DSC measurement)
Ident-No.
Weight / mg
Final temperature / °C
Temperature range / °C
Type of effect
Energy
/ J/g
36670
10.54
500
215 – 400
Exothermal
565
1.1.2 Explosive properties
The heat of decomposition was above 500 J/g. Therefore the main test on explosive properties had to be performed.
Mechanical sensitivity (friction):
The test item did not contain particles > 500 µm (see study No. PS20170415-2). Therefore sieving was not necessary. No explosion occurred within 6 tests using a pinload of 360 N.
Mechanical sensitivity (shock):
The test item did not contain particles > 500 µm (see study No. PS20170415-2). Therefore sieving was not necessary. No explosion within 6 tests using a mass of 10 kg falling from a height of 0.4 m was observed.
Thermal sensitivity:
Three tests were performed with a circular nozzle plate with a hole of 2 mm diameter. No explosion was observed.Table 2gives the results of the thermal sensitivity.
Table2: Thermal sensitivity
Test
no.
Weight of
test item
(g)
Nozzle
width
(mm)
t1
(s)
t2
(s)
Reaction
Appearance;
Number of
fragments
1
9.46
2.0
22
> 300
Flame
O
2
9.45
2.0
20
> 300
Flame
O
2
9.44
2.0
21
> 300
Flame
O
t1:time to any reaction, e.g. whistle or flame
t2:time to main reaction, e.g. rupture of tube or flashing
O: tube unchanged
The test on thermal sensitivity carried out with a nozzle with a diameter of 2.0 mm showed no explosion. Compared to the nozzle with a diameter of 6.0 mm the venting area of the nozzle with 2.0 mm is smaller by an order of magnitude. Additionally the physical state of the test item excludes the enrichment of high-energy components caused by evaporation of volatile solvents. Due to these facts an explosion with a nozzle width of 6.0 mm was excluded.
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