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Environmental fate & pathways

Adsorption / desorption

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Description of key information

HDI Trimer (Isocyanurat, n=3) is characterized by a Koc of  5700000 being calculated with PCKOCWIN v. 1.66.
According to the method of Gerstl (1999) the Koc of 21000000 accounts for the substance.
The corresponding triamine of the main component HDI Trimer (Isocyanurat, n=3) is characterized by a Koc of 610000 being calculated with PCKOCWIN v. 1.66. According to the method of Gerstl (1999) the Koc of 27000 accounts for the corresponding triamine.

Key value for chemical safety assessment

Koc at 20 °C:
21 000 000

Additional information

As the substance hydrolyses rapidly mainly forming polyureas, the calculation of adsorption coefficients is only of theoretical interest.

[LogKoc: 6.3222]