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Physical & Chemical properties

Vapour pressure

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Description of key information

Aluminium sulphate has negligible vapour pressure.

Key value for chemical safety assessment

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

Additional information

No experimental study is deemed necessary: based on the properties of the substance (solid with mp > 300°C) the vapour pressure is expected to be very low, and likely below the measurable range (10E-10 Pa).

However, a key value is required for purpose of CSA. As no realistic value can be provided, an arbitrary value of 0.001 Pa is proposed, in order to lie below the lower threshold of 0.01 Pa used by the risk assessment model.