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Vapour pressure

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Description of key information

The vapour pressure of the two liquid constituents are: 12.3Pa and 0.8Pa respectively at 25C.

According to the criteria for adaptation of the testing rules, a vapour pressure determination is not required for substances with a melting point above 300C - therefore a vapour pressure for the sodium acetate component is not required.

Key value for chemical safety assessment

Vapour pressure:
12.3 Pa
at the temperature of:
25

Additional information

The highest of the key values is chosen as a conservative estimate of the vapour pressure of this multicomponent substance. This component is always likely to be present at a level that will dominate the overall vapour pressure. Sodium acetate, as an inorganic substance, will not have a lower boiling point than either of the organic components and can therefore be ignored for determining the critical value for this end point.