Registration Dossier
Registration Dossier
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EC number: 229-314-8 | CAS number: 6471-50-7
Auto flammability
Administrative data
- Endpoint:
- auto-flammability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (VDI 2263).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263
Test material
- Reference substance name:
- 4-[(4-chloro-2-nitrophenyl)azo]-3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide
- EC Number:
- 229-314-8
- EC Name:
- 4-[(4-chloro-2-nitrophenyl)azo]-3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide
- Cas Number:
- 6471-50-7
- Molecular formula:
- C24H17ClN4O4
- IUPAC Name:
- 4-[(4-chloro-2-nitrophenyl)diazenyl]-3-hydroxy-N-(2-methylphenyl)-2-naphthamide
Constituent 1
Results and discussion
Auto-ignition temperature (liquids / gases)
- Auto-ignition temperature:
- 240 °C
- Atm. press.:
- ca. 1 013 hPa
- Remarks on result:
- other:
Relative self-ignition temperature (solids)
- Relative self-ignition temperature:
- 240 °C
- Remarks on result:
- other:
- Remarks:
- at atm. press. of ca.1013.0 hPa
Any other information on results incl. tables
The pure sample showed self-heating starting from 240 °C (max. temp. ca 325 °C).
The pure sample showed intense swelling in the Grewer oven which significantly reduces the surface of the powder and its air oxidation and thus the self-ignition process.
The mixture with kieselguhr showed self-ignition starting from 260 °C with a temperature rise to above 650 °C due to an oxidation reaction of the test substance with kieselguhr. In the mixture of the test substance with the inert kieselguhr, the surface of the test substance is increased due to the swelling of the pure product.
Applicant's summary and conclusion
- Conclusions:
- The pure test substance showed self-heating starting from 240 °C. The test item is not a self-heating substance according to UN class 4.2 and GHS/CLP.
- Executive summary:
Self-heating of the test substance was analysed by a screening test in the Grewer oven according to VDI 2263, sheet 1. The pure test substance showed self-heating starting from 240 °C. The test item is not a self-heating substance.
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