Gadolinium trinitrate

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:

From 22 September 2014 to 23 January 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Remarks on result:

other: No self-ignition temperature of the test item was observed up to 400°C.

At the start of the test, the test item was a colourless deliquescent crystalline solid.

At the end of the test, the cube was nearly empty; only a small part (some traces) of the test item remained. The solubilisation of the test item in its hydration water was observed between 82.0 °C and 95.5 °C (study report No. 14-918035-015). During the present study, the test item had thus liquefied and fallen in the small dish downside. At approximately 370 °C, the test item began to decompose into rare-earth oxynitrate.

Conclusions:

No self-ignition temperature of the substance was observed up to 400°C (corrected value).

Executive summary:

The self-ignition temperature of gadolinium trinitrate was investigated according to the EU A.16 method in compliance with GLP. No self-ignition temperature was observed up to 400°C (corrected value).

Description of key information

Gadolinium trinitrate was concluded not to be autoflammable.

Additional information

An experimental study of reliability 1 according to Klimisch, performed in compliance with GLP and according to EU method A.16, was selected as a key study. In this study, no self-ignition temperature was observed up to 400°C (corrected value). The temperature of the test item followed the temperature of the oven throughout the test.