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oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
November 11, 2009-November 21, 2011
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
according to guideline
EU Method A.17 (Oxidising Properties (Solids))
GLP compliance:
Contact with:
powdered cellulose
Duration of test (contact time):
ca. 291.5 s
Sample tested:
test mixture (not specified)
migrated information
maximum burning rate
ca. 291.5 s
Remarks on result:
other: with a 10% test substance and 90% cellulose, at 200 mm

The only burning was observed with a mixture of the test substance and cellulose in ratio of 10 : 90. If another ratio of the test substance and cellulose is used, less than 30 mm of the pile burned out and, after the flame had gone out, slow smouldering was observed only. After burning out of the flame already on the initial distance of 30 mm, the time was already not measured – spreading on the distance of 200 mm was longer than 1 hour.

Reference mixtures of Ba(NO3)2burned much faster, the most quickly burning mixture of Ba(NO3)2: cellulose ratio of 70 : 30 was used.

Mixtures of the test substance with cellulose smouldered much slower than that with the reference substance Ba(NO3)2, regardless of the ratio of the test substance to the cellulose. From these observations it was obvious that the test substance have not oxidising properties so that only one measurement was performed with each ratio of the test substance to cellulose.

Just a presence of the test substance in 10% (w/w) is sufficient to prevent the cellulose burning. If the test substance had oxidising properties, this effect could not happen.

Interpretation of results:
other: no oxidising properties
The test substance Acid Black 210 should not be considered as substance with oxidising properties
Executive summary:

The oxidising properties of Acid Black 210 were assessed following Method EU A.17, by mixing the substance with powdered cellulose at different proportions. The time of reaction was measured over a distance of 200 mm and compared to a mixture od oxidiser and cellulose. On the basis of the results the test substance Acid Black 210 should not be considered a substance with oxidising properties.

Description of key information

Not oxidising properties

Key value for chemical safety assessment

Oxidising properties:

Additional information

A study on Acid Black 210 (Michal Bartos, 2010) was performed for oxidising properties following method EU A 17. On the basis of the results the tested sample does not show oxidizing properties.

Justification for classification or non-classification

No classification for oxidising properties is required under Regulation 1272/2008