Registration Dossier
Registration Dossier
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EC number: 605-076-4 | CAS number: 156928-09-5
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:
- 2005-03-27 to 2007-07-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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)
- Remarks:
- Certificate from the Swiss GLP Monitoring Authority
- Type of method:
- thermal analysis
- Remarks:
- thermocouples
- Specific details on test material used for the study:
- - Identity: TIC876 (T002675)
- Batch: 603T-1
- Purity: 97.76%
- Expiration date: December 19, 2007
- Storage: at room temperature (about 20°C) - Melting / freezing pt.:
- -24 °C
- Atm. press.:
- 99.4 kPa
- Remarks on result:
- other: +/-1; Test conducted at ambient atmospheric pressure.
- Melting / freezing pt.:
- 249.2 K
- Atm. press.:
- 99.1 kPa
- Remarks on result:
- other: +/- 1; Test conducted at ambient atmospheric pressure.
- Conclusions:
- The freezing point of the test substance was found to be -24 ± 1°C, or 249.2 ± 1 K.
Reference
At –23 °C (1st test) and –25 °C (2nd test), respectively, the test item became turbid and started freezing by visual judgement. In conclusion, the freezing point was determined to be -24 °C ± 1.0 deg C which is equal to 249.2 K ± 1.0 K.
Description of key information
A K1 GLP study was performed according to the OECD guideline 102 and EU Method A.1. The freezing point of the test substance was found to be -24 ± 1 ° C, or 249.2 ± 1 K (Weissenfeld, 2007).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -24 °C
Additional information
The freezing point of the test substance was determined by thermal analysis to be -24 ± 1 ° C, or 249.2 ± 1 K.
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