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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
Not applicable, calculated value
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: This summary has a reliability of 2 because the results are estimated using a computer model that is appropriate for use with this hydrocarbon substance.
Justification for type of information:
QSAR prediction
Principles of method if other than guideline:
Vapour pressure was estimated by a QSAR, the Petrotox computer model (v 3.04).
GLP compliance:
no
Type of method:
other: The data were calculated by a computer model.
Key result
Temp.:
20 °C
Vapour pressure:
2.8 kPa
Key result
Transition / decomposition:
no
Transition temp.:
20
Conclusions:
The vapour pressure for 2,2,4-trimethylpentane was estimated using the Petrorisk computer model. A value of 2.8 kPa was calculated.
Executive summary:

The vapour pressure for 2,2,4-trimethylpentane was estimated using the Petrorisk computer model. A value of 2.8 kPa was calculated.

Description of key information

The vapour pressure for 2,2,4-trimethylpentane was estimated to be 2.8 kPa at 20°C.

Key value for chemical safety assessment

Additional information

The vapour pressure for 2,2,4-trimethylpentane was estimated using the Petrorisk computer model. A value of 2.8 kPa was calculated (CONCAWE 2010).