Barium zirconium trioxide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Version / remarks:

NF T 20-035 (SEPT 85). Chemical products for industrial use. Determination of the oxidizing properties of solids. To be conducted in accordance with Annex V A.17 method. Chemex SOP E401 Oxidising Properties (A17)

Deviations:

no

GLP compliance:

no

Specific details on test material used for the study:

Batch number: 17/1791
Purity / Composition: 99% Barium Zirconate CAS 12009-21-1
Chemex reference: ECO 181004
Appearance (observed): Creamy/white powder
Solubility (specified): Insoluble (SDS)
Homogeneity (observed): Homogeneous

Contact with:

powdered cellulose

Duration of test (contact time):

ca. 1 min

Key result

Sample tested:

other: one part cellulose and two parts of Barium Zirconate

Parameter:

preliminary test

Remarks on result:

mixture does not ignite and burn

For the train test, which was carried out after the preliminary test, the Barium Zirconate and cellulose tests each pile performed in the same way in that it did not burn and no flame was observed, only charring and a small amount of black smoke. The pile glowed orange in the time that the blow torch was pointed at the start of the pile, which was approx. 1 minute for each test.

Interpretation of results:

GHS criteria not met

Conclusions:

The test substance did not show any sign of burning under an ignition source of 1000°C although when the amount of cellulose increased in the mixture for the train test a slight charring was observed.
In the preliminary test the mixture didn’t show any burning reaction and the train test was carried out regardless to confirm the oxidising properties of the test material.
The conclusion is that Barium Zirconate is not considered to have oxidising properties based on the results obtained during this investigation.

Description of key information

The test substance did not show any sign of burning under an ignition source of 1000°C although when the amount of cellulose increased in the mixture for the train test a slight charring was observed.

In the preliminary test the mixture didn’t show any burning reaction and the train test was carried out regardless to confirm the oxidising properties of the test material.

The conclusion is that Barium Zirconate is not considered to have oxidising properties based on the results obtained during this investigation.

Key value for chemical safety assessment

Oxidising properties:

non oxidising