Registration Dossier
Registration Dossier
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EC number: 271-829-5 | CAS number: 68609-44-9
Auto flammability
Administrative data
- 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
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
- EC Number:
- 271-829-5
- EC Name:
- Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
- Cas Number:
- 68609-44-9
- Molecular formula:
- (Gd1.7, Yb0.3)O2S
- IUPAC Name:
- Gadolinium oxide sulfide, ytterbium-doped
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Relative self-ignition temperature (solids)
- Key result
- Relative self-ignition temperature:
- >= 400 °C
- Remarks on result:
- no self ignition observed under the test conditions
Any other information on results incl. tables
Negative result was obtained. No spontaneous ignition occured and no exothermic effect of the test item was observed.
In accordance with UN guideline, no further testing is required. The sample consistency was unchanged.
Applicant's summary and conclusion
- Conclusions:
- The substance demonstrated no self-ignition and no exothermic effect on heating at up to 400°C.
- Executive summary:
The self-heating (auto-flammability) was investigated in accordance with EC A.16. The preliminary study was conducted using a programmable laboratory oven, a stainless steel wire mesh cube, NiCr/NiAl thermocouples and a temperature recording device. The test cube was filled with the test substance and placed in the center of oven. The oven temperature was heated from 20.1°C to 400.4°C at a rate of 0.5°C / minute and the sample was cooled to determine the substance consistency after heating. No self-ignition and exothermic effect were observed during the preliminary study, and therefore, no further investigation was required. The test item(substance) is not considered a 'self-heating substance'.
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