Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report Date:
1979

Materials and methods

Principles of method if other than guideline:
Inhouse methode of Hoechst AG
Static; Range of measurement: 130 – 210°C
Representation of measuring values according ANTOINE
Type of method:
static method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.9 hPa
Remarks on result:
other: Based on extrapolation of measured values according ANTOINE
Temp.:
50 °C
Vapour pressure:
4.5 hPa
Remarks on result:
other: Based on extrapolation of measured values according ANTOINE

Any other information on results incl. tables

Comparision of Measured and Calculated values

T  P (measured) P (calculated) P (difference)
[°C] hPa hPa hPa
133.5 119.990 118.904 1.086
141.5 151.321 151.818 -0.497
153.5 220.915 215.305 5.610
163.5 279.044 283.874 -4.830
167.5 307.575 315.957 -8.382
178.5 415.166 420.013 -4.848
184.5 492.626 487.748 4.878
194.5 618.750 620.459 -1.710
204.5 794.735 781.366 13.369

Applicant's summary and conclusion

Conclusions:
The vapor pressure of the test item is 0.9 hPa at 20°C