Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Boiling point
Administrative data
- Endpoint:
- boiling point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Cross-reference
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 13 March 2017 to 14 March 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 200 °C
- Remarks on result:
- other: Glass transition point: -68.1°C. No melting between -90°C and the glass transition point.
- Conclusions:
- The glass transition point of the substance was determined to be -68.1°C. Melting of the substance was not observed between between -90°C and the glass transition point.
- Executive summary:
Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200. The glass transition temperature of the substance was determined in duplicate obtaining a mean value of -68.1°C. Melting of the substance was not observed between between -90°C and the glass transition point. Reaction and/or decomposition of the substance started at temperatures above 200°C. Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started.
TGA EXPERIMENT (PRELIMINARY TEST)
From 275°C upwards the weight of the sample decreased significantly: 25% and 70% weight loss at 359°C and 456°C, resp. After the experiment, a dark brown residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.
DSC EXPERIMENT 1
During cooling a phase transition was observed between -80°C and -60°C. During heating glass transition was observed between -75°C and -50°C with the inflection point at -68.395°C. An endothermic (reaction/decomposition) peak between 200°C and 359°C was observed. After the experiment, a yellow residue remained in the sample container.
DSC EXPERIMENT 2
The inflection point of the glass transition was determined to be -67.890°C. No change in appearance was observed after the experiment.
DATA HANDLING
The mean (n=2) inflection point was reported as the glass transition point of the substance: -68.1°C.
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
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