Registration Dossier
Registration Dossier
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EC number: 235-107-3 | CAS number: 12068-86-9
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:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Only one measurement was made during the DTA.
- 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:
- according to guideline
- Guideline:
- other: DIN 51004:1994 determination of melting temperatures of cristalline materials using Differential thermal analysis
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51007:1994 General principles of differential thermal analysis
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- > 1 000 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- Magnesium ferrite has a melting point > 1000 °C.
Reference
The sample shows no significant thermal events from 25 to 1000 °C. This result is consistent with the crystalline phases present in the sample. The melting point of Fe2O3 is 1539 °C1, and the phase diagram of MgO-Fe2O3 system2 suggest a melting point higher than 1600 °C for the MgFe2O4 -Spinel.
1: Lide, D.R. CRC Handbook of Chemistry and Physiks, 88th Edition
2: Phase diagramm 64. In Levin, E.M. et al. (Eds.) Phase diagrams for ceramists. Volume I Columbus: The American Ceramic Society, 1964
Description of key information
Magnesium ferrite has a melting point > 1000 °C.
Key value for chemical safety assessment
Additional information
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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.
