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EC number: 916-839-9 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
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- Flash point
- Auto flammability
- Flammability
- Explosiveness
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- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
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- Nanomaterial crystalline phase
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- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
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- Endpoint summary
- Stability
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- Environmental data
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- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
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- Long-term toxicity to aquatic invertebrates
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- Additional toxicological data

Auto flammability
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:
- February 22, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- other: Recommendations on the transport of dangerous godds: Manual of Tests and Criteria, 6th edition, New York and Geneva, 2015: Appendix 6 Screening Procedures, Division 4.2: Substances which may be liable to spontaneous combustion
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263, sheet 1
- Deviations:
- no
- GLP compliance:
- no
- Relative self-ignition temperature:
- 190 °C
- Remarks on result:
- preliminary test
- Remarks:
- (onset temperature)
- Conclusions:
- Self-heating starting from 190 °C
- Executive summary:
The self-ignition behavior of the test item was determined by Grewer test method in the oven according to VDI 2263, sheet 1. 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).
The temperature of the oven was increased with a constant heating rate (1.2 K/min) in an air stream and the temperature of the sample was recorded as a function of time at intervals of 10 seconds. The self-ignition behavior of the pure test item was indicated as a deviation between sample temperature and reference temperature.
In addition, the self-ignition behavior of the sample blended with 50 wt.-% Kieselguhr was investigated in a third wire basket simultaneously.
The test item indicated a self-heating at atmospheric pressure starting at a temperature of 190 °C; this self-heating process led to a maximum temperature of approx. 405 °C (corresponding oven temperature 290 °C).
On the basis of the results of the tests on the self-ignition in the Grewer Oven a classification of the test item as self-heating substance cannot be excluded.
Conclusion
Self-heating starting from 190 °C
Reference
In the investigation of self-ignition in the Grewer Oven for the test item an exothermic process was detected starting at a temperature of approx. 190 °C that led to a maximum temperature of approx. 405 °C (corresponding oven temperature 290 °C). No further thermal effects could be observed up to the maximum test temperature of approx. 410 °C. After the measurement a grey to black residue remained in the wire basket.
For the test item in mixture with Kieselguhr an exothermic process was detected starting at a temperature of approx. 190 °C that led to a maximum temperature of approx. 520 °C (corresponding oven temperature 265 °C). A further exothermic process was detected starting at a temperature of approx. 320 °C that led to a maximum temperature of approx. 430 °C (corresponding oven temperature 410 °C).
Experiment | Onset self-heating / °C | Maximum temperature / °C |
Test item | 190 | 405 |
Test item in mixture with Kieselguhr (1:1) | 190 | 520 |
320 | 430 |
Description of key information
Self-heating starting from 190 °C
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 190 °C
Additional information
VDI 2263 - Grewer test method
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