Benzoic acid, 5-[(4-aminophenyl)azo]-2-hydroxy-, reaction products with 3-[(4-amino-3-methoxyphenyl)azo]benzenesulfonic acid and carbonic dichloride, sodium salts

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

08.01.2018 - 12.01.2018

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:

Council Regulation (EC) No.440/2008, published in O.J. L 142, 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Contact with:

powdered cellulose

Duration of test (contact time):

0 s

Sample tested:

reference mixture as specified

Remarks:

60% barium nitrate with cellulose

Parameter:

maximum burning rate

Result:

1.82 mm/s

Key result

Sample tested:

test mixture (not specified)

Parameter:

burning time of reaction over a distance of 200 mm

Remarks on result:

other: none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile

Preliminary Test

As stated above, the mixture of the test substance with cellulose could not be ignited by touching with the flame; test substance mixture only glowed in the place of the gas burner effect. The yellowish smoke released. Because of no violent reaction, it was not possible to consider the test substance as an oxidant and the train test was performed according to a defined procedure.

The most of reaction zones of mixtures propagated over an initial distance of 30 mm, but none consumed all distance of the pile (200 mm) during 5 minutes of burning.

Interpretation of results:

GHS criteria not met

Conclusions:

Based on results obtained from trial test, it is obvious that none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile. Thus test substance, Direct Yellow 44, should not be considered as a substance with oxidizing properties.

Executive summary:

The oxidizing properties of test substance, Direct Yellow 44, were determined. The procedure was performed according to the Method A.17 Oxidizing properties (Solids), Council Regulation (EC) No.440/2008, published in O.J. L 142, 2008. Based on results obtained from trial test, it is obvious that none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile. Thus test substance, Direct Yellow 44, should not be considered as a substance with oxidizing properties.

Description of key information

The procedure was performed according to the Method A.17 Oxidizing properties (Solids), Council Regulation (EC) No.440/2008, published in O.J. L 142, 2008. Based on results obtained from trial test, it is obvious that none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile. Thus test substance, Direct Yellow 44, should not be considered as a substance with oxidizing properties.

Key value for chemical safety assessment

Oxidising properties:

non oxidising