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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Description of key information

4E-08 Pa at 20°C (C8 derivative; calculation ACD/Percepta 14.0.0; RL2)

Key value for chemical safety assessment

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

Additional information

The vapour pressure of C8-10  Alkylamidopropyl betaine was estimated by calculation using the software ACD/Percepta 14.0.0 (Build 2726). As it is not possible to calculate vapour pressures for charged molecules, the calculation was carried out for the non quaternised substance, and separately for the C8 and C10 derivative. Values of 4E-08 Pa and 4E-09 were obtained at 20°C for the C8 and C10 derivative, respectively.

The source substances used for calculation of the vapour pressure of the registration substance is non-quaternised and non-ionic but otherwise identical in head-group and carbon chain length and thus represents a worst case. Due to the ionic nature of the target substance, the vapour pressure is expected to be even lower.