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Reference
Endpoint:
oxidising properties
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010-09-20 to 2010-09-27
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: guideline study
Qualifier:
according to guideline
Guideline:
other: Oxidizing Properties UN-Test O.1.
Deviations:
no
Principles of method if other than guideline:
It is tested whether a test item should be assigned as oxidizing solid with respect to UN-Transport Regulations (Division 5.1) and GHS or EC 1272/2008 (CLP-Regulation) Annex 1: 2.14, respectively.
GLP compliance:
no
Contact with:
powdered cellulose
Duration of test (contact time):
3 min
Sample tested:
other: not specified (migrated information) mean burning time
Parameter:
other: mean burning time
Result:
330 s
Remarks on result:
other: Test item – Cellulose: 4 : 1
Sample tested:
other: not specified (migrated information) mean burning time
Parameter:
other: mean burning time
Result:
281 min
Remarks on result:
other: Test item – Cellulose: 1 : 1
Sample tested:
other: not specified (migrated information) mean burning time
Parameter:
other: mean burning time
Result:
330 s
Remarks on result:
other: Test item – Cellulose: 4 : 1
Sample tested:
other: not specified (migrated information) mean burning time
Parameter:
other: mean burning time
Result:
281 min
Remarks on result:
other: Test item – Cellulose: 1 : 1

Reference mixtures from potassium bromate and cellulose

Potassium bromate – Cellulose

Test 1

Test 2

Test 3

Test 4

Test 5

Average

3:7

83 s

90 s

93 s

86 s

65 s

83 s

2:3

54 s

67 s

51 s

64 s

44 s

56 s

Mixtures from test item and Cellulose

Test item – Cellulose

Test 1

Test 2

Test 3

Test 4

Test 5

Average

4:1

305 s

325 s

348 s

333 s

337 s

330 s

1:1

288 s

272 s

290 s

284 s

269 s

281 s

In all tests with the test item and Cellulose in the ratio 4:1 the mixture decomposed flameless very slowly over the complete pile.

In all tests with the test item and Cellulose in the ratio 1:1 the mixture decomposed with a yellowish flame very slowly over the complete pile.

The mean burning times of the test item-to-Cellulose ratio 4.1 and 1:1 are significantly greater than the mean burning time of a 3:7 mixture of Potassium bromate and Cellulose.

UN-Transport regulations

The product has not to be classified as oxidizing solid in Division 5.1 according to the UN-Transport Regulations.

GHS and EC 1272/2008 (CLP-Regulation)

The product has not to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Regulation) Annex 1: 2.14.

Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
UN-Transport regulations
Tricobalt tetraoxide has not to be classified as oxidizing solid in Division 5.1 according to the UN-Transport Regulations.

GHS and EC 1272/2008 (CLP-Regulation)
Tricobalt tetraoxide has not to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Regulation) Annex 1: 2.14.

Description of key information

The mean burning times of the test item-to-cellulose ratio 4.1 and 1:1 are significantly greater than the mean burning time of a 3:7 mixture of potassium bromate and cellulose.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

UN-Transport regulations

Tricobalt tetraoxide has not to be classified as oxidizing solid in Division 5.1 according to the UN-Transport Regulations.

GHS and EC 1272/2008 (CLP-Regulation)

Tricobalt tetraoxide has not to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Regulation) Annex 1: 2.14.

Justification for classification or non-classification

Tricobalt tetraoxide has not to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Regulation) Annex 1: 2.14.