Registration Dossier
Registration Dossier
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EC number: 944-817-9 | CAS number: 244626-73-1
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:
- From January 31 to October 01, 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
- 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
- Qualifier:
- according to guideline
- Guideline:
- other: BS4633
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- UK GLP Compliance Programme (inspected on August 21, 2007/ signed on October 15, 2007)
- Type of method:
- method to determine freezing temperature
- Specific details on test material used for the study:
- Storage condition of test material: Approximately 4 °C in the dark, under nitrogen.
- Melting / freezing pt.:
- < -20 °C
- Conclusions:
- No further testing is required.
- Executive summary:
The freezing point of the test substance was determined under GLP according to EU Method A.1 and OECD 102, by using BS4633: Method for the Determination of Crystallizing Point. Two main runs were performed, and no freezing was observed at the minimum test temperature.
The freezing temperature of test substance has been determined to be less than < 253 ± 0.5 K (< -20 ± 0.5 °C).
Reference
Determinations 1 and 2:
Observations: The test material became increasingly viscous during cooling
Result: Freezing temperature < 253 K (< -20 °C)
accuracy ± 0.5 °C
Description of key information
Freezing point < -20 °C.
No further testing required.
Key value for chemical safety assessment
Additional information
A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study. As no crystallisation was observed down to -20°C, the result is expressed as a limit value, and cannot be retained as key data for purpose of CSA.
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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