Reaction mass of pentasodium 2-{[4-chloro-6-(ethyl{3-[(2-sulfonatoethyl)sulfonyl]phenyl}amino)-1,3,5-triazin-2-yl]amino}-5-hydroxy-6-({2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)naphthalene-1,7-disulfonate and tetrasodium 2-[(4-chloro-6-{ethyl[3-(vinylsulfonyl)phenyl]amino}-1,3,5-triazin-2-yl)amino]-5-hydroxy-6-({2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)naphthalene-1,7-disulfonate

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

11 January 2006 to 13 March 2006

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.12 (Flammability (Contact with Water))

Qualifier:

according to guideline

Guideline:

EU Method A.13 (Pyrophoric Properties of Solids and Liquids)

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Identity: FAT 40824/A
Batch: Red ROE 805 BOP 04/05
Appearance: dark red powder
Purity: Organic part (Na-salt): approx. 82 %; Main component 1 : approx. 36.2 %; Main component 2: approx. 27.5 %; Oligomers: 10 %
Expiration date: 01 October 2010
Storage: At room temperature at about 20 °C in a desiccator (hygroscopic)

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:

FAT 40824/A could not be ignited with a flame during the preliminary test (contact time of about 2 minutes).

In contact with the ignition source, the flame became orange and FAT 40824/A turned black and started glowing while emitting some sparks. It sustained glowing for about 5 minutes. Underneath the black surface of the test item some unchanged material could be observed. FAT 40824/A could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore no main test was performed.

FLAMMABILITY IN CONTACT WITH WATER AND PYROPHORIC PROPERTIES

Chemical Structure

The appraisal of the molecular structure indicates no risk with respect to pyrophoric properties or the potential of evolving flammable gases in contact with water or humid air. Studies were performed in aqueous test systems (e.g. water solubility). The test item did not show any spontaneous ignition or formation of flammable gases performing the abovementioned study. Thus, it can be concluded beyond reasonable doubt that the test item does not ignite spontaneously when in contact with water or humid air.

Interpretation of results:

GHS criteria not met

Conclusions:

FAT 40824/A is considered as not "highly flammable".

Executive summary:

In a GLP-compliant study, the determination of the flammability of the test item was performed in accordance with the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A. 10 "Flammability (solids)", EEC Publication No. L383, December 1992. In contact with the ignition source, the flame became orange and FAT 40824/A turned black and started glowing while emitting some sparks. It sustained glowing for about 5 minutes. Underneath the black surface of the test item some unchanged material could be observed. FAT 40824/A could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was performed. In conclusion, FAT 40824/A is not "highly flammable" according to the criteria of the guideline.

Description of key information

The test substance is non flammable.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

FAT 40824/A could not be ignited with a flame during the preliminary test for testing flammability of solids (contact time of about 2 minutes). The substance is stable in water as seen in various experiments including water solubility test and non-reactive in air at ambient conditions (non-pyrophoric). Thus, the substance is considered non-flammable.

Justification for classification or non-classification

The test substance is considered to be not highly flammable, hence it does not warrant classification according to the EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.