Registration Dossier
Registration Dossier
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EC number: 212-295-5 | CAS number: 778-28-9
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 February 2020 to 13 March 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 4 March 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- August 1996
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- - Purity/Composition correction factor: No correction factor required
- Key result
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 175 °C
- Conclusions:
- Under the conditions of the study, reaction and/or decomposition of the test material was observed during DSC experiment starting at 175 °C (448 K). Boiling of the test material was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test material has no boiling temperature.
- Executive summary:
The boiling temperature of the test material was investigated in a study which was conducted in accordance with the standardised guidelines OECD 103, EU Method A.2 and EPA OPPTS 830.7220, and under GLP conditions.
During the study, the melting and boiling temperature of the test material were tested by DSC.
Under the conditions of the study, reaction and/or decomposition of the test material was observed during DSC experiment starting at 175 °C (448 K). Boiling of the test material was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test material has no boiling temperature.
Reference
Preliminary Test
Starting at 225 °C, the weight of the sample decreased significantly. At 247 °C, the sample weight had decreased by 25 %.
After the experiment, a black charred residue remained in the sample container (original colour: colourless). The change of the colour indicated reaction and/or decomposition of the test material.
Main Study
The TGA and DSC curves obtained are attached.
During cooling, no effects were observed. During heating an endothermic effect was observed starting at 175 °C. The endothermic effect was probably obtained due to reaction and/or decomposition of the test material.
After the experiment, a black molten residue remained in the sample container (original colour: colourless). The change of the colour indicated reaction and/or decomposition of the test material.
After the additional investigation of the melting temperature of the test material was performed (placing two sub-samples of the test material for 94 hours at -20.3 ± 2 °C and at -83.6 ± 1.7 °C respectively) it was observed after storage that the test material was a liquid (-20.3 ± 2 °C) and a very viscous liquid (-83.6 ± 1.7 °C). According to this it was concluded that the melting temperature of the test material is < -83.6 °C (<189.6 K).
Description of key information
Under the conditions of the study, reaction and/or decomposition of the test material was observed during DSC experiment starting at 175 °C (448 K). Boiling of the test material was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test material has no boiling temperature.
Key value for chemical safety assessment
Additional information
The boiling temperature of the test material was investigated in a study which was conducted in accordance with the standardised guidelines OECD 103, EU Method A.2 and EPA OPPTS 830.7220, and under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
During the study, the melting and boiling temperature of the test material were tested by DSC.
Under the conditions of the study, reaction and/or decomposition of the test material was observed during DSC experiment starting at 175 °C (448 K). Boiling of the test material was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test material has no boiling temperature.
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