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Environmental fate & pathways

Adsorption / desorption

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Description of key information

Based on the physicochemical properties, all the components of the substance Reaction mass of 2-ethylpropane-1,3-diol(DMP) and 5-ethyl-1,3-dioxane-5-methanol(CTF) and propylidynetrimethanol(TMP) can be expected to have a low potential for adsorption to soil. The octanol-water partition coefficient for Reaction mass of 2-ethylpropane-1,3-diol(DMP) and 5-ethyl-1,3-dioxane-5-methanol(CTF) and propylidynetrimethanol(TMP) i.e. log Pow = 0.19 (CTF), -0.2 (DMP) and -0.8 (TMP) is low. A waiver is proposed for this endpoint in line with Column 2 of Annex VIII of the REACH regulation, where  no study is required if the logPow is below the trigger of 3 as the substance can be expected to have a low potential for adsorption. 

Key value for chemical safety assessment

Additional information

Based on the physicochemical properties, all the components of the Reaction mass of 2-ethylpropane-1,3-diol(DMP) and 5-ethyl-1,3-dioxane-5-methanol(CTF) and propylidynetrimethanol(TMP) can be expected to have a low potential for adsorption to soil. The octanol-water partition coefficient for the Reaction mass of 2-ethylpropane-1,3-diol(DMP) and 5-ethyl-1,3-dioxane-5-methanol(CTF) and propylidynetrimethanol(TMP) i.e. log Pow = 0.19 (CTF), -0.2 (DMP) and -0.8 (TMP) is low. A waiver is proposed for this endpoint in line with Column 2 of Annex VIII of the REACH regulation, where no study is required if the logPow is below the trigger of 3 as the substance can be expected to have a low potential for adsorption.