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:
- 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:
- Cobalt magnesium tin spinel has a melting point > 1000 °C.
Reference
The sample shows no significant thermal events from 25 to 1000 °C. This result is in agreement with the crystalline phases present in the sample. The melting point of SnO2 is 1630 °C1, and the melting point of Co2 -XMgXSnO4 solid solution is presumably higher than the maximum temperture of the assay, because Co2SnO4 and MgSnO4 have a melting point higher than 1400 °C 2,3.
1: Lide, D.R. CRC Handbook of Chemistry and Physiks, 88th Edition
2:Aguilar- Martinez, JA et al. Optimal parameters for synthesizing single phase spinel-type Co2SnO4 by sol-gel technique: Structure determination and microstructure evolution. Journal of alloys and compounds. 547 (2013) 278-282
3: Phase diagramm 6405. In Levin, E.M. et al. (Eds.) Phase diagrams for ceramists. Volume I Columbus: The American Ceramic Society, 1964
Description of key information
Cobalt magnesium tin spinel has a melting point > 1000 °C.
Key value for chemical safety assessment
Additional information
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