Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 256-458-9 | CAS number: 49744-28-7
Explosiveness
Administrative data
- Endpoint:
- explosiveness, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.14 (Explosive properties)
- Deviations:
- no
- GLP compliance:
- no
- Other quality assurance:
- other: ISO 9001
Test material
- Reference substance name:
- 1-[(4-methoxy-2-nitrophenyl)azo]-2-naphthol
- EC Number:
- 256-458-9
- EC Name:
- 1-[(4-methoxy-2-nitrophenyl)azo]-2-naphthol
- Cas Number:
- 49744-28-7
- Molecular formula:
- C17H13N3O4
- IUPAC Name:
- 1-[(4-methoxy-2-nitrophenyl)diazenyl]-2-naphthol
- Test material form:
- solid
Constituent 1
Results and discussion
Small-scale preliminary testsopen allclose all
- Parameter:
- other: thermal sensitivity under conditions of thermal sterss and confinement
- Number of fragments:
- 0
- Remarks on result:
- not thermal sensitive if heated under defined confinement
- Parameter:
- sensitiveness to impact: impact energy (J)
- Remarks on result:
- not sensitive to impact using an impact energy of 40 J
- Parameter:
- sensitiveness to friction: friction load (N)
- Remarks on result:
- not sensitive to friction using a friction load of 360 N
Any other information on results incl. tables
DSC
A DSC-measurement in a closed crucible with the test item showed an endothermal effect in the temperature range of 180 – 225 °C and an exothermal effect in the temperature range of 225 –380 °C with an energy release of 2175 J/g. Due to the fact that the heat production was finished the measurement was terminated at 400 °C. After the measurement the test item was black.
Mechanical sensitivity (friction):
Due to the particle size of the test item (L50 = 6 μm) grinding and sieving was not necessary. No explosion occurred within 6 tests using a pinload of 360 N, only a discoloration of the test item was
observed in all tests.
Mechanical sensitivity (shock):
Due to the particle size of the test item (L50 = 6 μm) grinding and 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.
Applicant's summary and conclusion
- Interpretation of results:
- other: non explosive
- Conclusions:
- The test item had no explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.14.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
