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EC number: 213-584-9 | CAS number: 989-38-8
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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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263 (1990), sheet 1, Grewer Oven
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Remarks on result:
- other: No self-ignition up to 400 °C
- Conclusions:
- No self-ignition could be observed up to the maximum oven temperature of 400 °C.
- Executive summary:
A study was conducted equivalent to Regulation (EC) No 440/2008 Part A, A.16 and according to VDI 2263, sheet 1.The self-ignition behavior of the test item was determined in the oven according to VDI 2263, sheet 1. For this purpose, the test item was filled in a small wire basket of a volume of 8 cm³ and this wire-basket was placed into the oven. In this oven, the self-ignition behavior of five samples can be determined simultaneously. An additional basket was filled with a reference material (graphite).
In the investigation of self-ignition in the Grewer Oven for the pure test item a small endothermic effect could be observed at a temperature of approx. 220 °C, directly followed by an exothermic process starting at approx. 250 °C, which led to a maximum temperature of approx. 300 °C (30 °C above the corresponding temperature of the reference material). A second exothermic effect was observed from above 330 °C, which led to a maximum temperature of approx. 460 °C (60 °C above the corresponding temperature of the reference material). A black swelled residue remained in the wire basket after the test. No self-ignition could be observed up to the maximum oven temperature of 400 °C. As the test conditions are quite similar to the method A.16, it was concluded that the results are transferable and no other result would be obtained by a study in accordance with Regulation (EC) No 440/2008 Part A, A.16.
Reference
Self-ignition in the Grewer Oven
In the investigation of self-ignition in the Grewer Oven for the pure test item a small endothermic effect could be observed at a temperature of approx. 220 °C, directly followed by an exothermic process starting at approx. 250 °C, which led to a maximum temperature of approx. 300 °C (30 °C above the corresponding temperature of the reference material). A second exothermic effect was observed from above 330 °C, which led to a maximum temperature of approx. 460 °C (60 °C above the corresponding temperature of the reference material). A black swelled residue remained in the wire basket after the test.
Table 1: Results of the screening test for self-ignition in the Grewer-Oven
Experiment |
Onset self-ignition / °C |
Maximum temperature / °C |
Pure test item |
Approx. 250 |
300 |
Approx. 330 |
460 |
Description of key information
No self-ignition could be observed up to the maximum oven temperature of 400 °C.
Key value for chemical safety assessment
Additional information
A study was conducted equivalent to
Regulation (EC) No 440/2008 Part A, A.16 and according to VDI 2263,
sheet 1.The self-ignition behavior of the test item was determined in
the oven according to VDI 2263, sheet 1. For this purpose, the test item
was filled in a small wire basket of a volume of 8 cm³ and this
wire-basket was placed into the oven. In this oven, the self-ignition
behavior of five samples can be determined simultaneously. An additional
basket was filled with a reference material (graphite).
In the investigation of self-ignition in the Grewer Oven for the pure
test item a small endothermic effect could be observed at a temperature
of approx. 220 °C, directly followed by an exothermic process starting
at approx. 250 °C, which led to a maximum temperature of approx. 300 °C
(30 °C above the corresponding temperature of the reference material). A
second exothermic effect was observed from above 330 °C, which led to a
maximum temperature of approx. 460 °C (60 °C above the corresponding
temperature of the reference material). A black swelled residue remained
in the wire basket after the test. No self-ignition could be observed up
to the maximum oven temperature of 400 °C. As the test conditions are
quite similar to the method A.16, it was concluded that the results are
transferable and no other result would be obtained by a study in
accordance with Regulation (EC) No 440/2008 Part A, A.16.
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