Registration Dossier
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EC number: 268-717-3 | CAS number: 68133-90-4
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- dynamic method
- Temp.:
- 20 °C
- Vapour pressure:
- 23.9 hPa
- Remarks on result:
- other: The vapour pressure of a bis(ethanolammonium)hexahydroxoplatinate solution containing approximately 10% platinum is 23.9hPa at 20°C.
- Transition / decomposition:
- yes
- Transition temp.:
- 84.33 °C
- Vapour pressure at 10°C above transition temperature:
- 1 001 hPa
- Conclusions:
- The vapour pressure of a bis(ethanolammonium)hexahydroxoplatinate solution containing approximately 10% platinum is 23.9 hPa at 20°C.
- Executive summary:
This study follows a standard guideline without deviation and is conducted to GLP. The study is considered reliable and can be used as the key study for this endpoint. The vapour pressure of a bis(ethanolammonium)hexahydroxoplatinate solution containing approximately 10% platinum is 23.9 hPa at 20°C.
Reference
The sample became darker and rising smoke was observed during the measurements starting from 84.33°C. Decomposition of the test item is a probable explanation. After the measurements the residual sample contained solid particles. Thus, the mathematical calculation was performed without the last data points starting from 598.6hPa.
| Results: | ||
| Vapour pressure (hPa) | boiling temp (C) | Comments |
| 105.2 | 47 | measured |
| 125 | 50.47 | measured |
| 154.2 | 54.79 | measured |
| 201.6 | 60.45 | measured |
| 297.7 | 69.02 | measured |
| 399.4 | 75.66 | measured |
| 500.6 | 80.77 | measured |
| 598.9 | 84.33 | measured |
| 749.6 | 89.49 | measured |
| 853.7 | 92.38 | measured |
| 1001 | 95.2 | measured |
| 23.9 | 20 | calculated by mathematical extrapolation using the Antoine equation |
Description of key information
The vapour pressure of a bis(ethanolammonium)hexahydroxoplatinate solution containing approximately 10% platinum is 23.9 hPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 23.9 hPa
- at the temperature of:
- 20 °C
Additional information
Mekelburger (2002) follows OECD guideline 104 without deviation and is conducted to GLP. The study is considered reliable and can be used as the key study for this endpoint. The vapour pressure of a bis(ethanolammonium)hexahydroxoplatinate solution containing approximately 10% platinum is 23.9 hPa at 20°C.
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