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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Data waiving:
study technically not feasible
Justification for data waiving:
other:
Justification for type of information:
Sodium permanganate is an inorganic ionic salt. Ionic solids are composed of separate ions bound together in a high energy crystal lattice by ionic forces. In order to overcome the crystal lattice energy and change the substance from the solid into the gaseous form, considerable energy is required and this would require high temperatures. The resulting gas phase would consist of the separate ionic constituents. Sodium permanganate decomposes at a relatively low temperature and it can therefore be concluded that the vapour pressure of the solid is not measureable without decomposing the substance.

Description of key information

Sodium permanganate is an inorganic ionic salt. Ionic solids are composed of separate ions bound together in a high energy crystal lattice by ionic forces. In order to overcome the crystal lattice energy and change the substance from the solid into the gaseous form, considerable energy is required and this would require high temperatures. The resulting gas phase would consist of the separate ionic constituents. Sodium permanganate decomposes at a relatively low temperature and it can therefore be concluded that the vapour pressure of the solid is not measureable without decomposing the substance.


A vapour pressure of 0.00001 Pa at 25deg C is assumed for risk assessment purposes. 

Key value for chemical safety assessment

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

Additional information