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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The modelled Koc = 1.58 L/kg indicates that hydrogen peroxide has no potential for adsorption.

Key value for chemical safety assessment

Additional information

No experimental results were located concerning adsorption and desorption behaviour of hydrogen peroxide. Being highly soluble in water (in all proportions) and a highly polar substance, no remarkable adsorption to soil and sediment is expected for hydrogen peroxide and the mobility in soil is expected to be high. Modelling of the environmental distribution of hydrogen peroxide at equilibrium conditions using a Mackay Level 1 model indicate that the substance will partition into the aquatic compartment (99.98%) at 20 °C and that negligible fractions will be found in the air, soil or sediment compartments. Using QSAR, a value for the KOC may be calculated: log KOC = 0.52 * log KOW + 1.02 = 0.2 L/kg (TGD, QSAR for nonhydrophobics), which means a value for the KOC = 1.58 L/kg.