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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
no
Specific details on test material used for the study:
Storage: Room temperature
Remarks on result:
no self ignition observed under the test conditions
Remarks:
does not undergo spontaneous combustion

The sample showed an exothermic reaction starting at about 402 °C (ϑmax = 481 °C).

Conclusions:
Anthraquinone-2-sulfonic acid sodium salt does not undergo spontaneous combustion when tested according to EC A.16.
Executive summary:

The test was performed as stipulated in EC Test Procedure A.16 'Relative self-ignition temperature for solids'.

A certain volume of the substance under test was placed in an oven at room temperature; the temperature/time curve relating to conditions in the centre of the sample was recorded while the temperature of the oven was increased to 400 °C, or to the melting point if lower, at a rate of 0.5 K/min. For the purpose of this test, the temperature of the oven at which the sample temperature reached 400 °C by self-heating is called the self-ignition temperature.

The sample showed an exothermic reaction starting at about 402 °C (ϑmax = 481 °C).

Anthraquinone-2-sulfonic acid sodium salt does not undergo spontaneous combustion when tested according to EC A.16.

Description of key information

The test was performed as stipulated in EC Test Procedure A.16 'Relative self-ignition temperature for solids'.

A certain volume of the substance under test was placed in an oven at room temperature; the temperature/time curve relating to conditions in the centre of the sample was recorded while the temperature of the oven was increased to 400 °C, or to the melting point if lower, at a rate of 0.5 K/min. For the purpose of this test, the temperature of the oven at which the sample temperature reached 400 °C by self-heating is called the self-ignition temperature.

The sample showed an exothermic reaction starting at about 402 °C (ϑmax = 481 °C).

Anthraquinone-2-sulfonic acid sodium salt does not undergo spontaneous combustion when tested according to EC A.16.

Key value for chemical safety assessment

Additional information