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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

Waived:  log Kow of the substance is < 3.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of REACH annex IX, bioaccumulation testing is not necessary if the log Kow is < 3. The log Kow for the 2-ethylhexanoate component of the tin bis(2 -ethylhexanoate) salt is log Kow = 2.64 (un-ionized species at pH < 2.8). The estimated log D at pH 7 is approximately 0.6. The Sn(II) portion of the salt is inorganic and insoluble, therefore testing of bioaccumulation is not relevant or necessary.