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Physical & Chemical properties

Vapour pressure

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Description of key information

< 1 Pa at 25 °C

Key value for chemical safety assessment

Additional information

The vapour pressure of alcohols, C12 -15, ethoxylated, 1 -2.5 EO was deduced from three studies of structural similar substances.

Literature values for dodecan-1 -ol, tridecan-1 -ol, tetradecanol and pentadecan-1 -ol (ethoxylation degree 0) show a vapour pressure of 0.113 Pa, 0.0581 Pa, 0.0147 Pa, and 0.00513 Pa at 25 °C respectively.

Vapour pressure is a property which shows a negative correlation with the number of CH2 groups. The higher the number of CH2 groups, the lower the vapour pressure. There is also a correlation between vapour pressure and the degree of ethoxylation. Calculations show the higher the degree of ethoxylation the lower the vapour pressure.

Therefore the vapour pressure of alcohols, C12 -15, ethoxylated, 1 -2.5 EO is deduced to be < 1 Pa at 25 °C.