Registration Dossier
Registration Dossier
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EC number: 241-230-3 | CAS number: 17185-29-4
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Compliant, guideline study, available as unpublished report, acceptable with restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- 97 °C
- Decomposition:
- yes
- Decomp. temp.:
- 97 °C
- Conclusions:
- Carbonylhydrotris(triphenylphosphine)rhodium was determined to decompose from approximately 97 °C on heating. As the test item decomposed, no value for the melting temperature could be determined experimentally. Visual assessment performed using a metal block apparatus confirmed that the test item melted completely during the decomposition process and a black liquid with no remaining solid was observed at a temperature of 121 °C.
- Executive summary:
This is a GLP compliant, guideline study which is considered suitable for use as the key study for this endpoint. Carbonylhydrotris(triphenylphosphine)rhodium was determined to decompose from approximately 97 °C on heating.
Reference
Carbonylhydrotris(triphenylphosphine)rhodium was determined to decompose from approximately 97 °C on heating. As the test item decomposed, no value for the melting temperature could be determined experimentally. Visual assessment performed using a metal block apparatus confirmed that the test item melted completely during the decomposition process and a black liquid with no remaining solid was observed at a temperature of 121 °C (394K).
Description of key information
Carbonylhydrotris(triphenylphosphine)rhodium was determined to decompose from approximately 97 °C on heating. As the test item decomposed, no value for the melting temperature could be determined experimentally. Visual assessment performed using a metal block apparatus confirmed that the test item melted completely during the decomposition process and a black liquid with no remaining solid was observed at a temperature of 121 °C.
Key value for chemical safety assessment
Additional information
O'Connor and Woolley (2011) is a GLP compliant study following OECD TG 102, which is considered suitable for use as the key study for this endpoint. Carbonylhydrotris(triphenylphosphine)rhodium was determined to decompose from approximately 97 °C on heating.
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