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Vapour pressure

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Description of key information

The vapour pressure of Manganese (II) acetate was determined as well as estimated to be < 10 mm Hg at 25°C which is equal to < 13 hPa at 25°C.

Key value for chemical safety assessment

Vapour pressure:
13 hPa
at the temperature of:
25 °C

Additional information

The information gained from these studies was used for this endpoint summary because they are the only available studies, revealing equivalent results.

The experimental data were determined similar to OECD guideline 104 using the dynamic method. the vapour pressure was determined to be <10 mm Hg, which corresponds to 1.333 x 10³ Pa. The study was classified as reliable with restrictions, consequently the result can be considered as reliable and sufficient to cover this endpoint.

Additionally, data are taken from a peer-reviewed handbook and consequently considered to be reliable. The underlying considerations to determine this endpoint meet general scientific principles: Inorganic salts themselves, have in general a very high melting point and very low vapour pressure. Although no data on manganese (II) acetate itself were given, the vapour pressure can be estimated by read-across based on grouping of substances (category approach) based on similar molecular structure ( inorganic ionic structure). So it can be concluded that the vapour pressure of manganese (II) acetate is very low under normal environmental conditions, i.e. <10 mm Hg at 25°C.

The vapour pressure of Manganese (II) acetate of < 10 mm Hg resp. < 13 hPa at 25°C can consequently be used to assess the possible risk to health and environment arising from its physico-chemical properties. With this low vapour pressure, the formation of inhalable form is very unlikely and consequently the risk adverse effects due to inhalation of manganese (II) acetate can be neglected.