Fumes of germanium dioxide, calcium carbonate, iron oxides, sodium chloride and amorphous silica from smelting of Ge containing residues during germanium refining

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:

Since starting of production and use

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

equivalent or similar to guideline

Guideline:

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

Version / remarks:

Regular practice of heating FUMFL up to 1100°C.

Deviations:

yes

Remarks:

Temperature increase rises higher than 400°C.

GLP compliance:

no

Key result

Relative self-ignition temperature:

> 1 100 °C

Remarks on result:

no self ignition observed under the test conditions

Remarks:

No self ignition observed under normal use conditions (up to 1100°C)

Conclusions:

FUMFL does not show auto flammability up to 1100°C.
This evidence is for a temperature higher than that given in REACH Annex VII, Column 2, where the Regulation provides the following specific rule to support non testing: "for solids (...) or if preliminary results exclude self-heating of the substance up to 400°C.

Description of key information

FUMFL does not show auto flammability up to 1100°C.