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Environmental fate & pathways

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When release in water compartment

Due to its low octanol-water partition coefficient (log P=0.57) 1,3-diethyl-2-thiourea (DETU) is not expected to adsorb to sediment and will mainly be present in the aqueous phase. No specific study was performed to assess the hydrolysis of 1,3-diethyl-2-thiourea but it's well recognised that thioureas are stable in aqueous medium. 1,3-diethyl-2-thiourea is thus not expected to undergo hydrolysis in the environment. Furthermore, 1,3-diethyl-2-thiourea was shown to be not biodegradable with a ready biodegradability test.


When release in soil and sediment compartments

Due to a low log Kow, the substance should be characterised by a low potential of adsorption. This is supported with an estimated Koc value of 38.85 L/kg (Epiwin software). As a consequence, DETU will not persist in soil and sediment compartment because it will not adsorb on soil and sediment particules.


Bioaccumation potential

The partition coefficient of DETU was assessed by shake-flask method: log P = 0.57. This value indicates that DETU is characterised by a low potential of bioaccumulation.

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