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Auto flammability

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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: Lowest temperature determined at which substance vaporizes to form an ignitable mixture in air
Principles of method if other than guideline:
Lowest temperature determined at which substance vaporizes to form an ignitable mixture in air
GLP compliance:
not specified
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material : 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt
- Molecular formula : C28H25N5Na4O20S6
- Molecular weight : 1035.87 g/mol
- Smiles notation : Cc1cc(N=Nc2c(S(=O)(=O)O{-}.[Na]{+})cc3c(ccc(N)c3N=Nc3ccc(S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+})cc3S(=O)(=O)O{-}.[Na]{+})c2O)c(OC)cc1S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+}
- Substance type : Organic
- Physical state : Solid
Key result
Remarks on result:
other: Chemical (CAS no. 503155-49-5) ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it.Thus it can be concluded that substance is flammable only at high temperature of about 950°C.
Conclusions:
2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4-[[2-(sulfooxy) ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155-49-5) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4- [[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155-49-5) is not auto-flammable.
Executive summary:

2-Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 -[[2 -(sulfooxy) ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2 -Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 - [[2 -(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) is not auto-flammable.

Description of key information

2-Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 -[[2 -(sulfooxy) ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2 -Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 - [[2 -(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) is not auto-flammable.

Key value for chemical safety assessment

Additional information

2-Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 -[[2 -(sulfooxy) ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2 -Naphthalenesulfonic acid, 7 -amino-4 -hydroxy-3 -[[2 -methoxy-5 -methyl-4 -[[2 -(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8 -[[2 -sulfo-4 - [[2 -(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt (CAS no. 503155 -49 -5) is not auto-flammable.