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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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vapour pressure
Type of information:
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method. Calculation for representative constituents as indicated in section 1.2
Principles of method if other than guideline:
Calculation with use of SPARC online calculator v 4.6, self interaction physical process models for estimation of saturated vapour pressure.
GLP compliance:
Type of method:
other: QSAR
20 °C
Vapour pressure:
0.004 - 0.045 Pa
Remarks on result:
other: for representative constituents as indicated in section 1.2
QSAR result; transition/decomposition is not specified/reported. For detailed description of the model and its applicability, see "Any other information on materials and methods incl. tables".

Description of key information

0.00398 - 0.0447  Pa at 20 °C

Key value for chemical safety assessment

Vapour pressure:
0.045 Pa
at the temperature of:
20 °C

Additional information

The vapour pressure of the substance isononyl isononanoate was determined by QSAR calculation with SPARC (v4.6) for representative constituents as indicated in section 1.2.