Registration Dossier
Registration Dossier
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EC number: 212-506-0 | CAS number: 822-89-9
Oxidising properties
Administrative data
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16 January - 19 April 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
- Deviations:
- yes
- Remarks:
- Due to commercial unavailability, cellulose with a fibre length between 50 and 350 µm instead of 50-250 µm and a mean diameter of 12-15 µm instead of 25 µm is used, but not expected to influence the study outcome (same cellulose is used for all mixtures)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.17 (Oxidising Properties (Solids))
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Hydroxyl-2-pyridone
- EC Number:
- 212-506-0
- EC Name:
- Hydroxyl-2-pyridone
- Cas Number:
- 822-89-9
- Molecular formula:
- C5H5NO2
- IUPAC Name:
- 1-hydroxy-1,2-dihydropyridin-2-one
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material (as cited in study reports): Oxy-Pyrion
- Physical state: solid (powder)
- Appearance: white speckled gold powder
Constituent 1
- Specific details on test material used for the study:
- - Batch: OXY-16-0806
- Purity: 101.0%
- Retest date: 16 July 2021
- Storage conditions: At room temperature
Study design
- Contact with:
- powdered cellulose
- Duration of test (contact time):
- > 180 s
Results and discussion
Test results (Oxidising solids)open allclose all
- Key result
- Sample tested:
- 1:1 sample-to-cellulose ratio
- Parameter:
- mean burning time
- Result:
- > 180 s
- Key result
- Sample tested:
- 4:1 sample-to-cellulose ratio
- Parameter:
- mean burning time
- Result:
- > 180 s
- Sample tested:
- reference: 3:7 mixture potassium bromate + cellulose
- Parameter:
- mean burning time
- Result:
- 86 s
Any other information on results incl. tables
Since the burning rate of the test item mixtures was more than 3 min, only the reference mixture at 3:7 (w/w) was tested.
The mean burning time of both test item mixtures was more than the mean burning time of the 3:7 (w/w) reference mixture. According to this, the test item has no oxidizing properties.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The full test was performed to monitor the oxidizing properties of Oxy-Pyrion. Based on the results obtained it was concluded that the test item has no oxidizing properties and is therefore not classified as a Division 5.1 substance.
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