Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The vapour pressure was calculated by means of the program MPBPWIN, which is part of the program compilation EPI Suite. Based on these results, the vapour pressure of  Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc, was determined to lie in a range between 7.6E-06 and 1.45E-12 Pa.

Key value for chemical safety assessment

Additional information

The test method for the determination of the vapour pressure of a substance as described in Test Guideline A.4 of EC No 440/2008 was replaced by a theoretical based evaluation. The vapour pressure of Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc was calculated by means of the program MPBPWIN, which is part of the program compilation EPI Suite. For the calculation of the vapour pressure of the whole reaction product the three main homologues (n=1 to n=3, contents > 10%) have been taken as a basis. Representing the determining factors, the chemical structures of these homologues (n=1 to n=3) of the reaction product of 2-hydroxybenzoic acid and styrene were entered into MPBPWIN by SMILES (Simplified Molecular Input Line Entry System) notations separately. Based on these results, the vapour pressure of Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc, was determined to lie in a range between 7.6E-06 and 1.45E-12 Pa.

As the available experimental methods allow a determination of vapour pressures down to 10-05 Pa only, no meaningful experimental determination of the vapour pressure for Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc is possible. Therefore, in accordance to the respective EC guideline no experimental determination of the vapour pressure is required.