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Environmental fate & pathways

Adsorption / desorption

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Description of key information

logKoc = 1.87 (model by Franco and Trapp, 2008)

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

There are no studies available investigating the adsorption/desorption behaviour of 2-amino-2-(hydroxymethyl)-1,3-propanediol (TRIS AMINO). The Koc was therefore estimated by calculation.


As amine, TRIS AMINO is partly present in its positively charged form under environmental pH. The regression used for calculation takes into account the presence of the charged and uncharged species. The predicted log Koc was 1.87, indicating low adsorption potential.