Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- 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
- 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 test was carried aout in a thermal analysis equipment of mettler Toledo, using TGA/STDA851e model.
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- > 1 000 °C
- Sublimation:
- no
- Remarks on result:
- other: no significant thermal effects from 25 °C to 1000°C
- 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.
Reference
The result is in accordance with the melting points of the detected phases rutile (m.p. 1843°C*), corundum (m.p. 2054°C*) and pseudobrookite (m.p. > 1600°C**).
* Lide, D.R. (Ed.) CRC handbook of chemistry and physics. 88th. pp 4 -96. Boca Raton: CRC, 2008
** Phase diagram 2170. In H.F. Mc Murdie, et al (Ed.). Phase diagrams from ceramists. Vol.II. The American Ceramic Society. Ohio. 1985.
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.
Key value for chemical safety assessment
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
