Iron titanium pseudobrookite

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

only one measurement was performed; no reference material was subjected to the same controlled temperature programme

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

yes

Remarks:

only one measurement was performed; no reference material was subjected to the same controlled temperature programme

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

yes

Remarks:

only one measurement was performed; no reference material was subjected to the same controlled temperature programme

Principles of method if other than guideline:

The received sample was dries in an oven at 110 °C and it was shivered in a 100-micron shiver. Finally, it was colled in a desiccator. The test was carried aout in a thermal analysis equipment of mettler Toledo, using TGA/STDA851e model.

Analysis conditions:
- Maximum temperature: 1000 °C
- Heating rate: 10 °C/min
- Platinum vessel
- Dynamic air atmosphere

GLP compliance:

no

Type of method:

thermal analysis

Key result

Melting / freezing pt.:

> 1 000 °C

Decomposition:

no

Sublimation:

no

Remarks on result:

other: no significant thermal effects from 25 °C to 1000°C

The sample shows no significant thermal events from 25 °C to 1000 °C. This result is consistent with the phase diagram of the system FeO-Fe₂O₃-TiO₂*, according to which the melting point of the Fe₂TiO₅ is higher than 1600 °C.

*Phase diagram 2170. In McMurdie, et al.. Phase diagrams for ceramists. Vol. II. The American Ceramic Society. Ohio. 1985

Conclusions:

The test item has no melting point up to 1000 °C. No significant thermal effects from 25 °C to 1000 °C were determined in a differential thermal analysis.

Description of key information

The test item has no melting point up to 1000 °C. No significant thermal effects from 25 °C to 1000 °C were determined in a differential thermal analysis.