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EC number: 610-130-5 | CAS number: 436083-99-7
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- amporphous glass fibre formed from the melting and fiberisation of predominately slilcon dioxide, calcium oxide, magnesium oxide
- EC Number:
- 610-130-5
- Cas Number:
- 436083-99-7
- Molecular formula:
- Amorphous glass consisting of SinO(3n-1)2(n-1) Polymeric anions ionically bonded to Ca2+ and Mg2+ cations or other alkaline earth cations
- IUPAC Name:
- amporphous glass fibre formed from the melting and fiberisation of predominately slilcon dioxide, calcium oxide, magnesium oxide
- Details on test material:
- - Name of test material (as cited in study report): AES Covance
- Substance type: Inorganic
- Physical state: Solid
- Analytical purity: >99%
- Impurities (identity and concentrations): trace impurities
- Purity test date: 14/12/09
- Lot/batch No.: BG-10-X99-2981
- Expiration date of the lot/batch: 31/12/2020
- Stability under test conditions: stable
- Storage condition of test material: room temperature, sealed container
Constituent 1
- Specific details on test material used for the study:
- AES sample milled to powder, 50mg of powder used
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- > 350 °C
Any other information on results incl. tables
Polyethylene oxide used as a control sample in this case as it has a clear endothermic peak, due to
melting. The peak is clearly visible from around 70C . In comparison the AES shows a static line with no activity,
indicating that below 350C , these fibres are not melting.
Applicant's summary and conclusion
- Conclusions:
- AES fibres show a static line indicating that below 350C there is no melting.
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