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EC number: 262-309-9 | CAS number: 60580-61-2
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:
- 2017-03-10 to 2017-04-21
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
- Version / remarks:
- 2015
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Contact with:
- powdered cellulose
- Duration of test (contact time):
- > 180 s
- Sample tested:
- reference: 3:7 mixture potassium bromate + cellulose
- Parameter:
- mean burning time
- Result:
- 99 s
- Remarks on result:
- other: mean of 5 measurements
- Sample tested:
- 4:1 sample-to-cellulose ratio
- Parameter:
- mean burning time
- Result:
- > 180 s
- Remarks on result:
- other: mean of 5 measurements
- Sample tested:
- 1:1 sample-to-cellulose ratio
- Parameter:
- mean burning time
- Result:
- > 180 s
- Remarks on result:
- other: mean of 5 measurements
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Based on the test results the test item does not have to be classified as oxidizing solid.
In accordance with the results obtained in UN Test O.1 (Oxidising Properties, Solids) the test item is classified as follows:
UN Transport Regulation
The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.
GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14
The test item does not have to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP Regulation) Annex 1: 2.14.
Reference
Residual moisture
The test item contains a residual moisture of 0.2 wt.-%, which was determined by drying the test item under vacuum at 50 °C.
The reference item potassium bromate contains a residual moisture of < 0.1 wt.-%, which was determined by drying the reference item at 65 °C.
The reagent cellulose contains a residual moisture of 5.1 wt.-%, which was determined by drying the reagent at 105 °C.
Oxidizing properties
Burning times of the reference mixtures of potassium bromate and cellulose
Potassium bromate – Cellulose |
Test 1 / s |
Test 2 / s |
Test 3 / s |
Test 4 / s |
Test 5 /s |
Average / s |
3:7 |
93 |
105 |
101 |
97 |
100 |
99 |
The tests with the mixtures potassium bromate:cellulose 2:3 and 3:2 were not performed, because the burning time of the mixtures of the test item with cellulose was higher than the burning time of the reference mixture 3:7.
Burning times of the mixtures of the test item and cellulose
Test item – Cellulose |
Test 1 / s |
Test 2 / s |
Test 3 / s |
Test 4 / s |
Test 5 / s |
Average / s |
4:1 |
>180 |
>180 |
>180 |
>180 |
>180 |
>180 |
1:1 |
>180 |
>180 |
>180 |
>180 |
>180 |
>180 |
The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) is greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Due to the tests the test item does not have to be classified as oxidizing solid.
Description of key information
The test item does not have to be classified as oxidizing solid.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Based on the test results the test item does not have to be classified as oxidizing solid.
In accordance with the results obtained in UN Test O.1 (Oxidising Properties, Solids) the test item is classified as follows:
UN Transport Regulation
The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.
GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14
The test item does not have 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
The test item does not have to be classified as oxidising substance. Hence, C&L is not required in accordance with the UN Transport Regulation and GHS and Regulation (EC) No 1272/2008 (CLP Regulation).
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