Registration Dossier
Registration Dossier
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EC number: 419-240-6 | CAS number: 171054-89-0
Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 15.05.1995 - 13.09.1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.17 (Oxidising Properties (Solids))
- GLP compliance:
- yes (incl. QA statement)
- Contact with:
- powdered cellulose
- Key result
- Sample tested:
- other: 2:1 sample to cellulose ratio
- Parameter:
- preliminary test
- Result:
- 285 s
- Remarks on result:
- flaming
- Key result
- Sample tested:
- reference mixture as specified
- Remarks:
- 60:40 barium nitrate to cellulose ratio
- Parameter:
- maximum burning rate
- Result:
- 1.84 mm/s
- Key result
- Sample tested:
- test mixture as specified
- Remarks:
- 60:40 sample to cellulose ratio
- Parameter:
- burning rate
- Result:
- 1.64 mm/s
- Key result
- Sample tested:
- test mixture as specified
- Remarks:
- 60:40 sample to celite ratio
- Parameter:
- burning rate
- Result:
- 3.57 mm/s
- Interpretation of results:
- other: no oxidising properties
- Remarks:
- Migrated information
- Conclusions:
- The test material has been determined not to have oxidising properties.
- Executive summary:
The burning rates were determined for a further set of barium nitrate reference mixtures prior to testing of the fastest burning rate mixtures. This was considered necessary in order to account for day-to-day variation in atmospheric conditions and allow direct comparison of burning rates.
Using the criteria given in Method A17 of Commission Directive 92/69/EEC the result obtained from the standard test determined the test material to have oxidising properties.
The positive result obtained in the standard test was subjected to confirmatory testing by repeating the test using celite in place of cellulose. Celite (diatomaceous earth, also known as kieselguhr) is inert to oxidation. In this confirmatory test, observed burning of the mixtures is due to combustion of the test material and not due to oxidising properties.
The result of the standard test has been shown to be false-positive and the test material classified as non-oxidising, since in the confirmatory test, three test material/celite mixtures yielded burning rates to negate the results of the original test.
The experimental procedure used complied with that specified in Method A17 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).
Reference
Description of key information
The test material has been determined not to have oxidising properties.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
Justification for classification or non-classification
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