Registration Dossier
Registration Dossier
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EC number: - | 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:
- Experimental starting date: 13 December 2017. Experimental completion date: 08 March 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)
- 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
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: particulate/powder
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 201 °C
- Atm. press.:
- ca. 101 325 Pa
- Decomposition:
- yes
- Decomp. temp.:
- >= 210 - <= 220 °C
Any other information on results incl. tables
Thermograms for Determinations 1 and 2 are shown in attached background material.
Thermographic Data:
Thermal Event |
Interpretation |
Temperature (°C) |
|
Determination 1 |
Determination 2 |
||
Endotherm |
Onset of vaporization |
184.04 |
183.76 |
Extrapolated onset of melting |
200.18 |
201.46 |
|
Exotherm |
Onset of decomposition |
~210 to 220 |
~210 to 220 |
After heating to 400 °C, the samples had lost approximately 45% and 43% of their original weight respectively.
Overall result: Decomposition on melting from 201 °C (474 K). Decomposition was estimated to occur from approximately 210 to 220 °C (483 to 493 K).
Applicant's summary and conclusion
- Conclusions:
- The test item was determined to decompose on melting from 201 °C (474 K).
Decomposition was estimated to occur from approximately 210 to 220 °C (483 to 493 K). - Executive summary:
Melting point determination was carried out 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.
The test item was determined to decompose on melting from 201 °C (474 K).
Decomposition was estimated to occur from approximately 210 to 220 °C (483 to 493 K).
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