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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
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:
no
Specific details on test material used for the study:
- Name of test material (as cited in study report):4-amino-5-hydroxynaphthalene-1,7-disulphonic acid
- Molecular formula (if other than submission substance):C10-H9-N-O7-S2
- Molecular weight (if other than submission substance):319.3131 g/mol
- Smiles notation (if other than submission substance):c1cc(c2cc(cc(c2c1N)O)S(=O)(=O)O)S(=O)(=O)O
- InChl (if other than submission substance):1S/C10H9NO7S2/c11-7-1-2-9(20(16,17)18)6-3-5(19(13,14)15)4-8(12)10(6)7/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18)
- Substance type:Organic
- Physical state:Solid
Key result
Remarks on result:
other: 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid 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-amino-5-hydroxynaphthalene-1,7-disulfonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid is not auto-flammable.
Executive summary:

4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  is not auto-flammable.

Description of key information

4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  is not auto-flammable.

Key value for chemical safety assessment

Additional information

4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid  is not auto-flammable.