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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 May 2016 - 31 August 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Test material information:
Composition 1
Key result
Remarks on result:
no self ignition observed under the test conditions
Remarks:
(up to 400°C)

At the start of the test, the test item was a white powder.

At the end of the test, the cube was half-full of yellow powder. This change may be due to the loss of hydration water from the test item and its decomposition which were observed around 100°C and 140°C and 275°C - 325°C respectively during the melting point study (study report No. 16-919080-001).

The temperature of the test item sample followed the temperature of the oven up to the highest oven temperature reached (400°C).

Similar observations were made in the two assays.

Conclusions:
The self-ignition temperature of tris[oxalato(2-)]digadolinium 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). The temperature of the test item sample followed the temperature of the oven.

Description of key information

In a GLP study performed according to the EU A.16 method (Klimisch 1, Demangel, 2016), no self-ignition temperature was observed up to 400°C (corrected value). The temperature of the test item sample followed the temperature of the oven.

This study was assigned as key study.

Key value for chemical safety assessment

Additional information

At the end of the test, the cube was half-full of yellow powder. This change may be due to the loss of hydration water from the test item and its decomposition which were observed around 100°C and 140°C and 275°C - 325°C respectively during the melting point (study report No. 16-919080-001).