Registration Dossier
Registration Dossier
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EC number: 245-912-1 | CAS number: 23850-94-4
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:
- 02 May 2018
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < -28 °C
- Remarks on result:
- other: Atmospheric pressure
- Conclusions:
- Under the conditions of this study the melting/freezing point was determined to be below -28 °C.
- Executive summary:
The melting/freezing temperature of the test material was investigated in accordance with the standardised guideline OECD 102.
The sample was cooled down in a freezer to -28 °C and stored at this temperature for 5 days. The physical state of the test material was observed.
After 5 days at -28 °C the sample was liquid and highly viscous.
Under the conditions of this study the melting/freezing point was determined to be below -28 °C.
Reference
After 5 days at -28 °C the sample was liquid and highly viscous. Therefore the melting/freezing point is below -28 °C.
Description of key information
Doetschel (2018)
Under the conditions of the study the melting/freezing point was determined to be below -28 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -28 °C
Additional information
Doetschel (2018)
The melting/freezing temperature of the test material was investigated in accordance with the standardised guideline OECD 102. The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).
During the study, the sample was cooled down in a freezer to -28 °C and stored at this temperature for 5 days. The physical state of the test material was observed.
After 5 days at -28 °C the sample was liquid and highly viscous.
Under the conditions of the study the melting/freezing point was determined to be below -28 °C.
Miller (2018)
The freezing point of the test material was investigated by placing the test material sample (4 ounce bottle) in a -15 °C Fisher Scientific Isotemp Freezer with R134A refrigerant. During the study, the sample was held for 8 hours and shaken at 1 hour intervals.
No onset of crystallisation was observed. Due to the limitations of the test apparatus, the freezing point could not be determined lower than -15 °C.
Under the conditions of this study the freezing point of the test material was determined to be < -15 °C.
The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).
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