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EC number: 233-360-4 | CAS number: 10128-55-9
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Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-09-31 to 2017-09-01
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Rev. 6 and UN-Model Regulations, Rev. 19
- Version / remarks:
- 2015
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263 Sheet 1 Grewer Oven
- Version / remarks:
- 1990
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2017-02-28
- Relative self-ignition temperature:
- > 420 °C
- Remarks on result:
- no self-ignition observed up to the melting point
- Conclusions:
- The pure test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide indicated no self-ignition up to the maximum test temperature of 420 °C.
On the basis of the results of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:
UN Transport Regulation: The test item has not to be classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.
GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item has not to be classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1, Section 2.11.
Reference
In the investigation of self-ignition in the Grewer Oven for the pure test item shows no self-ignition up to the maximum test temperature of 420 °C. After the measurement the basket was empty.
For the test item in mixture with Kieselguhr shows an endothermic effect at approx. 195 °C (melting) and an small exothermic effect started at 280 °C and lead to the maximum temperature of 310 °C (reference temperature 295 °C). After this the temperature decreased to the reference temperature and no significant temperature increase up to the maximum temperature of 420 °C was observed. After approx. five hours at 420 °C an exothermic effect started and lead to a maximum temperature of 660 °C.
Results of the screening test for self-ignition in the Grewer Oven
| Experiment | Start of effects / °C | Maximum temperature / °C |
| Pure test item | --- | 420 |
| Test item in mixture with Kieselguhr (1:1) | 280 420 |
310 660 |
Description of key information
The pure test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide indicated no self-ignition up to the maximum test temperature of 420 °C
Key value for chemical safety assessment
Additional information
The pure test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide indicated no self-ignition up to the maximum test temperature of 420 °C.
On the basis of the results of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:
UN Transport Regulation: The test item has not to be classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.
GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item has not to be classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1, Section 2.11.
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