Registration Dossier
Registration Dossier
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EC number: 946-997-4 | 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:
- from 12 April 2016 to 13 April 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- 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
- Details on test material:
- - Appearance: yellow/brown powder
- Storage conditions: in refrigerator (2-8°C)
Results and discussion
Melting / freezing point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 225 °C
- Remarks on result:
- other: no melting point
Any other information on results incl. tables
TGA EXPERIMENT (PRELIMINARY TEST)
From 50°C upwards the weight of the sample decreased significantly. 25% weight loss at 346°C. 56% weight loss at 550°C. After the experiment, a black residue remained in the sample container (original colour: yellow/brown). The change of the colour indicated reaction and/or decomposition of the test item.
DSC EXPERIMENT
DSC curve: see illustration below. A broad endothermic peak between 25°C and 225°C was observed. The effect was most likely obtained due to evaporation of impurities in the test item. The endothermic peak between 225°C and 346°C was due to reaction and/or decomposition of the test item. After the experiment, a brown residue remained in the sample container.
Applicant's summary and conclusion
- Conclusions:
- The substance has no melting temperature. Decomposition starts at > 225°C.
- Executive summary:
In a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200 it was concluded from a DSC experiment that reaction and/or decomposition of the test item started at temperatures above 225°C. Melting of the test item was not observed below the temperature at which reaction and/or decomposition started. The substance has no melting temperature.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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