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Environmental fate & pathways

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Magnesium sulphate does not hydrolyze nor is there evidence for photodegradation. In aqueous solution, magnesium sulphate is completely dissociated into the magnesium ion (Mg2+) and the sulfate anion (SO4 2-). Due to the inorganic nature of the substance standard biodegradation testing systems are not applicable. Based on the high water solubility and the ionic nature, magnesium sulphate is not expected to adsorb or bioaccumulate to a significant extent. Based on the physico-chemical properties of magnesium sulphate, water is expected to be the main target compartment. Based on the high water solubility, a low geoaccumulation potential and high mobility in soil is to be expected. However, due to ion-ion interactions it is to be expected that mobility in soil is significantly reduced. Magnesium sulphate will not volatilize from soil.