Registration Dossier

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:
2012

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: crystalline

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.