Registration Dossier
Registration Dossier
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EC number: 604-667-4 | CAS number: 14898-67-0
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:
- 5 October 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Decomposition:
- yes
- Decomp. temp.:
- ca. 90 °C
- Remarks on result:
- other: No melting below 450 °C
- Conclusions:
- Ruthenium trichloride decomposed from approximately 90°C with no definitive signs of melting below 450°C.
- Executive summary:
Walker and White (2011) is a GLP compliant study following OECD guideline 102 and EU method A1. It is considered suitable for use as the key study for this endpoint. Ruthenium trichloride decomposed from approximately 90°C with no definitive signs of melting below 450°C.
Reference
As a result of the low rate of enthalpy change during decomposition, the onset temperature could only be approximated.
As the test item was supplied as the hydrated solid, it was concluded that the complex broad endotherms observed from approximately 90 °C were most likely due to losses of water of crystallisation.
Similar thermographic profiles were obtained using air and nitrogen atmospheres; this indicates that the observed decomposition is probably thermal and not oxidative
Description of key information
Ruthenium trichloride decomposed from approximately 90°C with no definitive signs of melting below 450°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 450 °C
Additional information
Walker and White (2011) is a GLP compliant study following OECD guideline 102 and EU method A1. It is considered suitable for use as the key study for this endpoint. Ruthenium trichloride decomposed from approximately 90°C with no definitive signs of melting below 450°C.
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