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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Description of key information

Additional information

Malachite Green (MG) is principle released in waste water.

The behaviour of MG is determined on the basis of properties as highly soluble in water, a very low Henry's law constant and a little related to organic matrices. Volatilization from most soil and water surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 1.9 x 10-14 atm-m3/mole.

The hydrolysis studies demonstrated that in environmental conditions MG is in equilibrium with the Carbinol form that, on the contrary, has an high logKow and Koc.