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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways

Henry's Law constant

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Description of key information

The estimated Henry coefficient of 9.2 x 10-12 atm-m3/mole or 9.32x10-7 Pa-m3/mole is considered low.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
at the temperature of:
25 °C

Additional information

The Henry’s law constant (HLC) of amides, C16-18 (even numbered) and C18-unsatd., N,N-bis(hydroxyethyl) was estimated by HENRYWIN v3.20 using bond contribution method. This method uses valid Bond contribution values, which are determined for 59 chemical bonds by a least-square analysis of HLCs for 345 organic compounds.

The value of the HLC for amides, C16-18 (even numbered) and C18-unsatd., N,N-bis(hydroxyethyl) was finally calculated on a weighted-average basis using the mole fractions of the individual components.

 The estimated HLC value was found to be 9.2 x 10-12atm-m3/mole (9.32 x 10-7pa-m3/mole).