Dilithium peroxide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 SEP 2021 - 29 SEP 2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Version / remarks:

Official Journal of the European Union, L 142, 31 May 2008

Deviations:

yes

Remarks:

See principle of method if other than guideline section

Principles of method if other than guideline:

Concerning: Test Item Treatment
According to the guideline: The test item will be reduced to a particle size < 0.125 mm by sieving and grinding the remaining fraction.
Actual procedure: Test item was not ground; it was only sieved and the fraction passed through was used for the test.
Reason of the Deviation: Characteristics of the test item
Presumed Effect on the Study: This deviation has no effect on the integrity and validity of the study.

GLP compliance:

yes (incl. QA statement)

Contact with:

powdered cellulose

Sample tested:

other: 2:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

3 s

Remarks on result:

vigorous reaction in the preliminary test

Interpretation of results:

other: Category 1 (strong oxidising solids) based on EU GHS criteria

Conclusions:

The cone-shaped pile formed during the Preliminary Test was ignited. A vigorous reaction was observed; the flame flared up and then went out. The pile burned down in three seconds. Sample was classified as oxidising.

Executive summary:

The oxidising properties test was performed according to the EU Method A.17 under GLP compliance using particles with a size below 0.125 mm. During the preliminary test the sample was ignited. A vigorous reaction was observed; the flame flared up and then went out. the test item is reported to have a burning time in the 2:1 sample-to-cellulose ratio (by mass) of 3 seconds therefore the sample is considered to be oxidising. Sample has to be classified as category 1 based on EU GHS criteria.

Description of key information

The oxidising properties test was performed according to the EU method A.17 under GLP compliance using particles with a size below 0.125 mm. During the preliminary test the sample was ignited. A vigorous reaction was observed; the flame flared up and then went out. the test item is reported to have a burning time in the 2:1 sample-to-cellulose ratio (by mass) of 3 seconds therefore the sample is considered to be oxidising. Sample has to be classified as category 1 based on EU GHS criteria.

Key value for chemical safety assessment

Oxidising properties:

oxidising

Justification for classification or non-classification

According to the criteria using test O.1, it is stated that any substance in the 4:1 or 1:1 sample to cellulose ratio (by mass) tested, exhibits a mean burning time less than the mean burning time of a 3:2 mixture of potassium bromate and cellulose, which is 4 seconds, consider to be classified category 1. As the test item is reported to have a burning time in the 2:1 sample-to-cellulose ratio (by mass) of 3 seconds thus the sample has to be classified as category 1 based on EU GHS criteria.