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Environmental fate & pathways

Adsorption / desorption

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Description of key information

Adsorption to solid soil phase is expected. 

Key value for chemical safety assessment

Additional information

Under environmental conditions the test substance will dissociate into its ions, acetate and the ethylviolet-cation.

Acetate/acetic acid is readily biodegradable.

Under environmental conditions (pH about 7) the ethylviolet-cation exists predominantly in its forms with one and two positive charges. Hence, a Koc estimation via QSAR does not make sense. Therefore a method for the experimental determination of the adsorption of dyestuffs on activated sludge (Pagga & Taeger 1994) was used. In this test a Kd-value of 10800 L/kg was obtained.