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Vapour pressure

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Description of key information

The vapour pressure of the test substance has been determined to 3.2 E-7 Pa at 20°C, 6.1E-7 25°C, and calculated to 3.3E-5 Pa at 60°C for Primary fatty amine Tetradecyl bis(2-hydroxyethylamine). SInce this is a substance with the same structure but a shorter alkyl chain length and a lower molecular weight, these data are used as a worst case value for Octadecylbi(2-hydroxyethyl)amine.

Key value for chemical safety assessment

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

Additional information

As a worst case, the vapour pressure is read across from a substance with lower carbon chain distribution within the Primary Fatty Amine Ethoxylated (PFAEO) category. Since the vapour pressure increase with decreasing hydrophobe in a specific homologue, it is a worst case to read across from a substance with lower carbon chain distribution. A value at higher temperature has been estimated using linear regression and the constants obtained from measure data.