Registration Dossier
Registration Dossier
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EC number: 481-880-7 | CAS number: 949495-68-5
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:
- experimental dates: July 02-04, 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognized method, and under GLP. No deviation was reported. Test substance is adequately specified. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 27, 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- EEC Directive 92/69, December 1992
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed on 09 June 2008
- Type of method:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < -76 °C
- Conclusions:
- No further testing required (< -20°C).
- Executive summary:
The freezing point of the test substance was determined under GLP according to OECD 102 / EU A1 guideline. The determination was carried out in duplicate.
The test item did not freeze during cooling down to -76°C. Viscosity increased, but the sample was still movable.
The freezing temperature of the test substance has been determined to be less than -76°C.
Reference
During the main tests, the samples were cooled down from room temperature to about -76°C.
The test item increased in viscosity but was still movable. Therefore, no clear freezing point could be determined within the temperature range.
The freezing point must be below -76°C.
Description of key information
Freezing point < -76°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 -76°C, the result is expressed as a limit value, and cannot be retained as key data.
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