Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
Test material
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated value from extrapolation of measured vapour pressure above 96 °C
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated value from extrapolation of measured vapour pressure above 96 °C
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated value from extrapolation of measured vapour pressure above 96 °C
Any other information on results incl. tables
The vapour pressure was measured in the temperature range of 35 °C to 136 °C. Above 96 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures were displayed as a function of the inverse temperature. Based on this function, the values for 20 °C, 25 °C and 50 °C are calculated by using the Antoine constants A,B and C as derived from the function log (p/hPa) = A + B/(C + T[°C]).
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the substance was determined to be 1.0E-11 hPa at 20 °C, 3.2E-11 hPa at 25 °C and 6.0E-9 hPa at 50 °C.
- Executive summary:
The vapour pressure was measured in the temperature range of 35 °C to 136 °C. Above 96 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures were displayed as a function of the inverse temperature. Based on this function, the values for 20 °C, 25 °C and 50 °C were calculated to be 1.0E-11 hPa at 20 °C, 3.2E-11 hPa at 25 °C and 6.0E-9 hPa at 50 °C.
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