Leuco polysulfided 4-[(2,4-dinitrophenyl)amino]phenol

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09 August - 09 September, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

31 May, 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Expiry date 29 April 2020
Storage room temperature

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

Remarks:

The flame from a gas burner was applied to one end of the powder train for 2 minutes. The burning of the pile was observed. The test was performed twice. In the preliminary test the test item could be ignited but the reaction zone did not propagate on the pile. Based on the results of the preliminary test, no main test was performed.

In the preliminary test the test item could be ignited but the reaction zone did not propagate on the pile. Based on the results of the preliminary test, no main test was performed. The test item is considered not highly flammable.

Interpretation of results:

GHS criteria not met

Remarks:

The test item is considered not highly flammable.

Conclusions:

In the preliminary test the test item could be ignited but the reaction zone did not propagate on the pile. Based on the results of the preliminary test, no main test was performed.

The test item is considered not highly flammable.

Executive summary:

The purpose of the study was to evaluate the flammability of the test item. The test item was formed into a powder train. It was ignited by a gas flame and the burning rate was determined. Two parallel flammability tests were performed. The tests were negative. The test item is not highly flammable under the conditions of this test.

Description of key information

In the preliminary test the test item could be ignited but the reaction zone did not propagate on the pile. Based on the results of the preliminary test, no main test was performed. The test item is considered not highly flammable.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Flammable solids

The product has not to be classified as flammable combustible solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

Flammable gases

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as flammable gas.

 

Flammable liquid

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as flammable liquid.

 

Pyrophoric solids

The study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days). Thus, no study was conducted and the substance was not considered for classification as pyrophoric solids.

Pyrophoric liquids

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as pyrophoric liquid.

 

Substances which, in contact with water, emit flammable gases

In accordance with column 2 of REACH Annex VI and with Regulation (EC) No 1272/2008 Annex I section 2.12.4 and ECHA guidance on the application of CLP Criteria section 2.12.4.2 the classification procedure for this hazard class need not to be applied. Based on the experience in handling and use the substance does not react with water and in addition the test substance is not pyrophoric. Thus, no study was conducted and the substance was not considered for classification.

Flammable Aerosols

Section 2.4.2 of Guidance on the application on the CLP Criteria state as follows:

“Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state." Thus, as the substance does not meet the definition for aerosol, the test for aerosols was waived. Consequently the substance has not to be considered for classification for this hazard class.

In conclusion the substance has not to be considered as flammable gas, flammable liquid, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid or pyrophoric liquid.

Justification for classification or non-classification

In accordance with Annex I Section 2.2, Section 2.3, Section 2.6, Section 2.7, Section 2.9, Section 2.10, Section 2.12 of Regulation (EC) No 1272/2008 as amended for the twelfth time in Regulation (EU) No 2019/52 and UN GHS Rev 6 (2015) the test item has not to be classified as, flammable liquid, readily combustible solid in class 4 Division 4.1, substances which in contact with water emit flammable gases in Class 4 Division 4.3, pyrophoric liquid, pyrophoric solid in class 4 Division 4.2, flammable gases in class 2 or as aerosol in class 2.