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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
other: Expert Judgement
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data derived form expert Judgement
Principles of method if other than guideline:
Expert Judgement
GLP compliance:
no
Remarks on result:
other: Expert Judgement

Expert Judgement

Conclusions:
Not autoflammable
Executive summary:

Not autoflammable

Description of key information

non auto-flammable (up to 400°C)

Key value for chemical safety assessment

Additional information

The substance is produced and regularly used for many years in Europe, transported in various conditions and in various amounts. Evidence connected to the long experience in handling, use and transport of the substance confirms the non- self-ignition properties. Thus, the substance is expected to be an air-stable compound at room temperature over a prolonged period of time (days), without noticeable or undesirable reactions. In conclusion, a potential for spontaneous ignition is not expected: the substance can be considered as a no-pyrophoric and no-self-heating solid because it is not liable to self-heat by reaction with air and without energy supply. In addition, the substance is very soluble in water at room temperature and forms a stable solution with water. No reactions with water or emission of flammable gases have ever been noted. Furthermore, for soluble dyes a reaction with water is not a desirable property from the use point of view. Therefore, the substance cannot be classified as a substance that in contact with water may react generating flammable gases.

 

Moreover, an existing study on a similar substance was considered as supporting information:

 

The determination of the auto-ignition temperature on the Similar Substance was conducted in accordance with the EEC Directive Annex V of 67/548 . The test substance did not show auto-ignition up to 400 °C.

Based on the information available the substance is considered to be Non autoflammable.

The complete evaluation of the Read Across approach is attached at section 13.