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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
- Study period:
- The study was conducted between 21 August 2018 and September 2018.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Identification: Reaction mass of crystalline magnesium silicate and crystalline silicon and synthetic amorphous silicon dioxide
Appearance/Physical state: black powder
Lot No: Y180510A
Purity: Mg-SiO 95 wt% Carbon 4.0 ± 2.0 %wt
Expiry date: 31 May 2019
Storage conditions: room temperature, in the dark - Key result
- Melting / freezing pt.:
- > 450 °C
- Conclusions:
- The test item has been determined to not melt up to 450°C (723 K).
- Executive summary:
No melting occurred up to 450 °C (723 K) by differential scanning calorimetry, using a procedure designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
Reference
After heating to 450 °C, the samples had no measurable weight loss.
Overall result: no signs of melting up to 450°C (723 K)
Description of key information
No melting occurred up to 450 °C (723 K) by differential scanning calorimetry, using a procedure designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 450 °C
Additional information
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