CTO

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

June 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

2015

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Batch no.: B0345
Purity: >99%
Homogeneity: homogeneous

Test procedure:

burning rate test: preliminary screening test

Burning time:

2 min

Remarks on result:

not determinable

Remarks:

No ignition was observed throughout the course of the test

As the flame of the teclu burner contacted with the test item, the flame coloured into orange. Glowing of the test item was observed. No ignition was observed throughout the course of the test.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item Cesium Tungsten Oxide should be considered as not highly flammable (for EU regulations) and as non-flammable solid (for UN regulations).

Description of key information

A preliminary screening test for flammability was conducted on Cesium Tungsten Oxide following the EU Method A.10 and the UN Method N.1. No ignition was observed throughout the course of the test. The test item Cesium Tungsten Oxide should thus be considered as not highly flammable (for EU regulations) and as non-flammable solid (for UN regulations).

The study for flammability (gases) is technically not feasible because the test item is a solid.

The study for flammability (contact with water) does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g., the substance is manufactured with water or washed with water.

The study for flammability (pyrophoric) does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

No ignition was observed throughout the course of the flammability test. The test substance does not meet the Regulation (EC) No 1272/2008 as amended criteria for classification as a Flammable Solid.