Ruthenium (IV) oxide

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03/01/2001 - 04/01/2001

Reliability:

2 (reliable with restrictions)

Qualifier:

according to guideline

Guideline:

other: VDI richtlinie 2263, Blatt 1

GLP compliance:

not specified

Specific details on test material used for the study:

ruthenium-oxihydrat, moisture content ca 10.2%

Key result

Relative self-ignition temperature:

> 420 °C

Remarks on result:

no self ignition observed under the test conditions

endothermal phase due to water evaporation until approx 110°C

afterwards, exothermal peak associated with temperature increase of approx 60K, followed by linear temperature increase behaviour till final temperature of 419.68°C

No self-ignition behaviour of test item.

Conclusions:

In a preliminary test up to 420°C, ruthenium (IV) oxide did not show self-ignition behaviour.

Executive summary:

A preliminary test was performed to determine self ignition behaviour of ruthenium (IV) oxide according to VDI guideline 2263. The peak of approximately 60°C observed at approx 110°C was attributed to evaporation of water. No self-ignition was observed in the temperature range 25 - 420 °C.

Description of key information

A preliminary test was performed to determine self ignition behaviour of ruthenium (IV) oxide according to VDI guideline 2263. No self-ignition was observed in the temperature range 25 - 420 °C.

In accordance with column 2 of REACH Annex VII, the self-ignition temperature study does not need to be conducted as the substance is a solid and preliminary results exclude self heating of the substance up to 400°C.