Registration Dossier
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EC number: 238-947-9 | CAS number: 14874-82-9
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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Version / remarks:
- Melting point was determined using the Differential-Scanning -Calorimetry (DSC).
- Principles of method if other than guideline:
- The Differential-Scanning-Calorimetry (DSC) was used to determine the melting temperature of the test item. The melting temperature was determined at a heating rate of 5 K/min.
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Remarks:
- Differential scanning calorimetry
- Melting / freezing pt.:
- 155 °C
- Remarks on result:
- other: Heating rate of 5 K/min
- Conclusions:
- The melting point of dicarbonyl(pentane-2,4-dionato-O,O')rhodium is about 155°C.
- Executive summary:
This is a non-guideline study but follows an acceptable method for determining melting point using differential scanning calorimetry. The melting point of dicarbonyl(pentane-2,4 -dionato-O,O')rhodium was determined to be about 155°C, as measured by differential scanning calorimetry.
Reference
Melting point data for (acetylacetonato) dicarbonyl rhodium (I) at a heating rate of 5 K/min:
| Trial no. | Sample mass (mg) | Melting temperature (extrapolated) (deg C) |
| 1 | 3.39 | 153 |
| 2 | 6.50 | 155 |
Description of key information
The melting point of dicarbonyl(pentane-2,4-dionato-O,O')rhodium is about 155°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 155 °C
Additional information
Michael-Schulz (2012) is non-GLP study but followed a standard test method and melting point was determined using differential scanning calorimetry. The melting point of dicarbonyl(pentane-2,4 -dionato-O,O')rhodium was determined to be about 155°C.
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