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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 14 September 2022 to 10 October 2022
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2022
Report date:
2022

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
no
Type of method:
gas saturation method

Test material

Constituent 1
Chemical structure
Reference substance name:
1-isopropyl-3-(prop-1-en-2-yl)benzene
EC Number:
924-469-4
Cas Number:
1129-29-9
Molecular formula:
C12H16
IUPAC Name:
1-isopropyl-3-(prop-1-en-2-yl)benzene
Test material form:
liquid

Results and discussion

Vapour pressure
Key result
Temp.:
20 °C
Vapour pressure:
ca. 788 Pa

Any other information on results incl. tables

 


























Equilibration time Headspace (h)



Headspace concentration (µg/L)



Headspace concentration (g/m^3)



 24



 518.9



 0.5189



 52



 527.9



 0.52.79



 72



 507.4



 0.5074


Applicant's summary and conclusion

Conclusions:
The vapour pressure of Isopropyl isopropenyl benzene (MonoPEB) at 20°C was calculated from the average headspace concentration.

The result was 7.88 Pa.

Therefore:
Vapour pressure of Isopropyl isopropenyl benzene (MonoPEB): 7.88 Pa at 20°C
Executive summary:

The vapour pressure of the test material Isopropyl isopropenyl benzene (MonoPEB) has been determined to be 7.88 Pa at 20°C using the Gas saturation method.
Therefore:
Vapour pressure of Isopropyl isopropenyl benzene (MonoPEB): 7.88 Pa at 20°C