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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
Study period:
26 April 2010 - 28 April 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Specific details on test material used for the study:
4,4'-oxydianiline
4,4'-diaminodiphenyl ether
CAS 101-80-4
Key result
Relative self-ignition temperature:
> 192 °C
Remarks on result:
other: No ignition was observed up to 192°C ( the melting point of the substance as was determined in study reference 10/051-344AN).

Three replicate tests were performed. The relative self-ignition temperature of 4,4-Diaminodiphenylether: no ignition was observed up to 192°C(melting point was determined in 10/051-344AN study).

Conclusions:
The substance is not considered to have a relative self ignition temperature below the melting point. The substance is therefore not classified for this endpoint hazard.
Executive summary:

The substance is not considered to have a relative self ignition temperature below the melting point. The substance is therefore not classified for this endpoint hazard. In compliance withAnnex V A.16 guideline "Relative Self-Ignition Temperature", Paragraph1.4. Principle of the Method, it is stated that:

"A certain volume of the substance under test is placed in an oven at room temperature; the temperature/time curve relating to conditions in the centre of the sample is recorded while the temperature of the oven is increased to 400 °C,or to the melting point if lower, at a rate of 0,5 °C/min.
For the purpose of this test, the temperature of the oven at which the sample temperature reaches 400 °C by self-heating is called the self-ignition temperature.

As the substance melted prior to achieiving any self ignition, it is deemed that the substance does not pose a hazard for this endpoint.

Description of key information

The auto-flammability of the test item was determined using the EU Method A.16 under GLP conditions.

No ignition was observed up to 192°C (melting point).

The substance is not considered to have a relative self ignition temperature below the melting point. The substance is therefore not classified for this endpoint hazard.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
192 °C

Additional information