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Environmental fate & pathways

Adsorption / desorption

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Description of key information

Based on the column 2 of Annex VIII of REACH, the study does not need to be conducted if the substance and its relevant degradation products decompose rapidly.

Key value for chemical safety assessment

Additional information

Based on the column 2 of Annex VIII of REACH, the study does not need to be conducted if the substance and its relevant degradation products decompose rapidly.

In case where ECHA and the Competent Authorities do not agree with this waiving and its justification, we have included a testing proposal for an adsorption/desorption test (test C.18 that could be performed in 2013 in view of the planning of the laboratories).

Vegeflux Soy is a UVCB. Standard tests for this endpoint are intended for single substances and are not appropriate for this complex substance. In order to complete this endpoint and as the base-set level, adsorption data for representative hydrocarbon constituents have been used:

Calculation of Koc with KOCWIN v2.00:

- Methyl linoleate: estimated Koc = 4.284E+004 L/kg to 4.747E+004 L/kg

- Methyl elaidate: estimated Koc = 4.747E+004 L/kg to 9.557E+004 L/kg

- Linoleic acid: estimated Koc = 1.136E+004 L/kg to 1.17E+004 L/kg

Thus:

- If released to soil, Vegeflux Soy is expected to have no mobility based upon estimated Koc of its main constituents.

- If released into water, Vegeflux Soy is expected to adsorb to suspended solids and sediment based upon estimated Koc of its main constituents.