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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Reference
Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Estimated data are obtained from a reliable (Q)SAR program developed and validated by the United States Environmental Protection Agency (U.S. EPA). This program is included in the OECD (Q)SAR Toolbox for use in filling REACH data gaps.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Estimated data are obtained from a reliable (Q)SAR program developed and validated by the United States Environmental Protection Agency (U.S. EPA). This program is included in the OECD (Q)SAR Toolbox for use in filling REACH data gaps.
GLP compliance:
no
Type of method:
other: Empiric structural model
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0 < Pa
Remarks on result:
other: 3.58E-007 mm Hg

Vapor Pressure Estimations (25 deg C):

 (Using BP: 381.70 deg C (estimated))

 (Using MP: 52.00 deg C (user entered))

   VP:  8.14E-008 mm Hg (Antoine Method)

     :  1.09E-005 Pa  (Antoine Method)

   VP:  3.58E-007 mm Hg (Modified Grain Method)

     :  4.77E-005 Pa  (Modified Grain Method)

   VP:  2.53E-005 mm Hg (Mackay Method)

     :  0.00338 Pa  (Mackay Method)

 Selected VP:  3.58E-007 mm Hg (Modified Grain Method)

            :  4.77E-005 Pa (Modified Grain Method)

 Subcooled liquid VP:  6.34E-007 mm Hg (25 deg C, Mod-Grain method)

                    :  8.46E-005 Pa  (25 deg C, Mod-Grain method)

Conclusions:
The test substance was estimated to have a vapour pressure of 4.77E-5 Pa, or 3.58E-7 mm Hg, at 25 °C using MPBPVP v1.43 of EPI-Suite v4.11. The substance is qualitatively found to be of low volatility.

Description of key information

not volatile

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

Estimated as 4.77E-05 Pa at 25 °C using MPBPVP v1.43 of EPI-Suite v4.11