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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

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
Details on test material:
Weston TPP

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
>= 0.069 Pa

Applicant's summary and conclusion

Conclusions:
Vapour pressure measurements dropped during the successive runs (10) used in this study. The drop in readings appears to be due to the presence of an impurity in the test substance (most likely phenol). The reading for the final run was 0.069 Pa at 25 degrees C. The vapour pressure TPP was concluded to be at or below this final reading. Modeled data suggest that the vapour pressure of TPP may be even lower.
Executive summary:

The vapour pressure for TPP was concluded to be at or below 0.069 Pa at 25 degrees C.