Registration Dossier
Registration Dossier
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EC number: 219-323-5 | CAS number: 2414-98-4
Endpoint summary
Administrative data
Description of key information
Due to the rapid hydrolysis of magnesium ethanolate in water or soil moisture, the degradation products, magnesium hydroxide and ethanol are relevant for the aspect of environmental distribution. Neither of the compound species is considered to be a candidate of environmental concern:
1.Ethanol, based on the Henry’s law constant of 0.575 Pa m3/mol, is not expected to significantly volatilise from the aquatic compartment, while adsorption to soil is not a significant factor due to its high water solubility and low octanol-water partition coefficient, and rapid degradation.
2. Mg-compounds are ubiquitous constituents in the environment. Depending on environmental pH conditions, magnesium hydroxide, Mg(OH)2, will either dissociate (acidic pH) or predominantly precipitate (neutral, alkaline pH) and eventually partition into the sediment or soil compartment. Under acidic environmental conditions, the compound dissociates into more water-soluble Mg-compounds and water. Thus, Mg2 +-ions may become mobile and migrate into the water phase, while - on the other hand - interaction with negative surface charges of soil particulate matter may slow down or suppress the mobility of magnesium.
Additional information
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