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EC number: 200-805-9 | CAS number: 74-11-3
Auto flammability
Administrative data
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10.03.2021 - 11.03.2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: UN Manual of Tests and Criteria, 7th edition, New York and Geneva, 2019: Appendix 6 Screening Procedures, Division 4.2: Substances which may be liable to spontaneous combustion
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263 (1990), Grewer Oven
- Deviations:
- not specified
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-chlorobenzoic acid
- EC Number:
- 200-805-9
- EC Name:
- 4-chlorobenzoic acid
- Cas Number:
- 74-11-3
- Molecular formula:
- C7H5ClO2
- IUPAC Name:
- 4-chlorobenzoic acid
- Test material form:
- solid: particulate/powder
- Details on test material:
- white to yellowish crytalline powder
Constituent 1
Results and discussion
Relative self-ignition temperature (solids)
- Key result
- Relative self-ignition temperature:
- > 410 °C
- Remarks on result:
- no self ignition observed under the test conditions
Any other information on results incl. tables
In the investigation of self-ignition in the Grewer Oven for the pure test item an endothermic effect could be observed starting at a temperature of 190 °C which can be assigned the melting to the test item. No further thermal effects could be observed up to the maximum test temperature of 410 °C. After the test the wire basket was empty.
For the test item in mixture with Kieselguhr an endothermic effect could be observed starting at a temperature of 190 °C which can be assigned the melting to the test item. No further thermal effects could be observed up to the maximum test temperature of 410 °C.A white residue (Kieselguhr) remained in the wire basket after the test.
Applicant's summary and conclusion
- Conclusions:
- On the basis to 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 does not have to be classified as self-heating substance in Class 4, Division 4.2 according to the UN Transport Regulation.
GHS / CLP Regulation (EC) No. 1272/2008 Annex I: 2.11: The test item does not have to be classified as self-heating substance according to GHS / CLP Regulation (EC) No. 1272/2008 Annex I: 2.11 - Executive summary:
The pure test item p-Chlorobenzoic acid showed an endothermic effect starting at a temperature of 200 °C which can be assigned the melting to the test item. No further thermal effects could be observed up to the maximum test temperature of 410 °C. The test item does not have to be classified as self-heating substance according to GHS / CLP Regulation (EC) No. 1272/2008 Annex I: 2.11.
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