Registration Dossier
Registration Dossier
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EC number: 234-909-0 | CAS number: 12039-88-2
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Tungsten disilicide
- EC Number:
- 234-909-0
- EC Name:
- Tungsten disilicide
- Cas Number:
- 12039-88-2
- Molecular formula:
- Si2W
- IUPAC Name:
- Tungsten disilicide
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- Batch number: 171130
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- > 430 °C
- Atm. press.:
- 760 mm Hg
- Decomposition:
- no
Applicant's summary and conclusion
- Conclusions:
- The melting point of Tungsten disilicide is over 430 °C at 760 mm Hg.
- Executive summary:
The melting point of tungsten disilicide was determined by Differential Scanning Calorimeter (DSC) method.
As there was no endothermic peak observed up to 430 °C when the test item was heated in presence of nitrogen, the melting point of the test item is considered to be > 430 °C at normal atmospheric pressure (760 mm Hg).
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