Registration Dossier
Registration Dossier
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EC number: 949-694-5 | CAS number: -
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 28 Nov 2018 - 19 Dec 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 guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Magnesium potassium fluoride silicate (Mg2.7K0.7Si4O10F2)
- EC Number:
- 949-694-5
- Molecular formula:
- Mg2.7K0.7Si4O10F2
- IUPAC Name:
- Magnesium potassium fluoride silicate (Mg2.7K0.7Si4O10F2)
- Test material form:
- solid: particulate/powder
- Details on test material:
- Trade name: MICROMICA
Constituent 1
- Specific details on test material used for the study:
- Chemical name: Magnesium potassium fluoride silicate (Mg2.7K0.7Si4O10F2)
Previously known as: magnesium potassium silicon fluoride hydroxide oxide, and referenced as CAS number 273730-58-8
Trade name: MICROMICA
Composition formula: K₀.₇Mg₂.₇Si₄O₁₀F₂
Molecular weight: 403.33 g/mol
Purity of test item: ≥95%
Impurity: <5% water
Lot number: 776A
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- > 400 °C
- Atm. press.:
- ca. 101 325 Pa
- Decomposition:
- no
- Sublimation:
- no
Applicant's summary and conclusion
- Conclusions:
- No peaks were observed in the DSC charts and the test item did not change in appearance after testing (white powder). As the measurement was performed up to 400 °C, it is therefore concluded the melting point of the test item is >400 °C.
- Executive summary:
The melting point of the test item was measured in a GLP study performed using method OCED 102. No peaks were observed in the DSC charts and the test item did not change in appearance after testing (white powder). As the measurement was performed up to 400 °C, it is therefore concluded the melting point of the test item is >400 °C.
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