Registration Dossier
Registration Dossier
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EC number: 260-913-7 | CAS number: 57712-94-4
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:
- 21.12.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < -20 °C
- Atm. press.:
- 101.325 kPa
- Conclusions:
- Under the conditions of the study, no freezing point was detected down to a lower temperature of -20°C. The freezing point of the test substance is <-20°C
- Executive summary:
The freezing point of the test material was investigating using apparatus for the determination of freezing temperature according to method A1 as detailed in regulation 440/2008. The test substance was placed in jacketed glassware with cooling. During cooling the temperature was measured at regular intervals (every 0.5 mins). The freezing point would be recorded when the temperature remains constant for a number of readings, or crystals are observed in the sample. The temperature range of the equipment is -20°C - 150°C. No freezing point was detected for the test substance. The sample was then held at -21°C for approximately 24 hours. Flow restriction was observed, but no crystallisation. The freezing point of the test substance is <-20°C.
Reference
The test sample was held at -21°C for approximately 24 hours. Flow restriction was observed but no crystallisation.
Description of key information
Under the conditions of the study, no freezing point was detected down to a lower temperature of -20°C. The freezing point of the test substance is <-20°C determined according to
method A1 as detailed in regulation 440/2008
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -20 °C
Additional information
The freezing point of the test material was investigating using apparatus for the determination of freezing temperature according to method A1 as detailed in regulation 440/2008. The test substance was placed in jacketed glassware with cooling. During cooling the temperature was measured at regular intervals (every 0.5 mins). The freezing point would be recorded when the temperature remains constant for a number of readings, or crystals are observed in the sample. The temperature range of the equipment is -20°C - 150°C. No freezing point was detected for the test substance. The sample was then held at -21°C for approximately 24 hours. Flow restriction was observed, but no crystallisation. The freezing point of the test substance is <-20°C.
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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