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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
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
Specific details on test material used for the study:
- Name of test material : 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid
- Molecular formula : C20H15NO8S2
- Molecular weight : 461.47 g/mol
- Smiles notation : O=S(=O)(O)c1cc(O)c2c(cc(Nc3ccc4c(cc(S(=O)(=O)O)cc4O)c3)cc2)c1
- InChl : 1S/C20H15NO8S2/c22-19-9-15(30(24,25)26)7-11-5-13(1-3-17(11)19)21-14-2-4-18-12(6-14)8-16(10-20(18)23)31(27,28)29/h1-10,21-23H,(H,24,25,26)(H,27,28,29)
- Substance type: Organic
- Physical state: Solid
Key result
Remarks on result:
other: Chemical (CAS no. 87-03-6) 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:
4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid is not auto-flammable.
Executive summary:

4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid is not auto-flammable.

Description of key information

4 -hydroxy-7 -[(5 -hydroxy-7 -sulfonaphthalen-2 -yl)amino]naphthalene-2 -sulfonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4 -hydroxy-7 -[(5 -hydroxy-7 -sulfonaphthalen-2 -yl)amino]naphthalene-2 -sulfonic acid is not auto-flammable.

Key value for chemical safety assessment

Additional information

4 -hydroxy-7 -[(5 -hydroxy-7 -sulfonaphthalen-2 -yl)amino]naphthalene-2 -sulfonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4 -hydroxy-7 -[(5 -hydroxy-7 -sulfonaphthalen-2 -yl)amino]naphthalene-2 -sulfonic acid is not auto-flammable.