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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Henry's Law constant

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Administrative data

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Description of key information

From the water surface, the substance will slowly evaporate into the atmosphere.

Key value for chemical safety assessment

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

Additional information

An experimental HLC value is availabe for diethylamine (CAS 109 -89 -7). In a publication of Christie and Crisp (1967), the test substance is reported to have a measured Henry's Law constant (HLC) of 2.58 Pa*m³/mol at 25 °C (cited in HENRYWIN v3.20, EPI Suite v4.11).

In addition, the HLC was calculated by using the bond estimation method of HENRYWIN v3.20 (EPI Suite v 4.11; BASF SE 2020) to be 2.97 Pa*m³/mol. This estimation refers to the uncharged molecule. The substance is within the applicability domain of the model.

In conclusion, based on a weight-of-evidence approach of the experimental and calculated data, diethylamine is expected to slowly evaporate into the atmosphere from the water surface.