Registration Dossier
Registration Dossier
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EC number: 273-708-2 | CAS number: 69011-71-8 A scum formed on the surface of molten aluminum and molten aluminum alloys.
Endpoint summary
Administrative data
Description of key information
Additional information
Bioaccumulation refers to uptake from all environmental sources including water, food and sediment.
According to column 2 of Annex IX (standard information requirements for substances manufactured or imported in quantities of 100 tonnes or more) of Regulation (EC) No 1907/2006 a study on bioaccumulation in aquatic species does not need to be conducted if the substance has low potential for bioaccumulation and/or a low potential to cross biological membranes or if direct and indirect exposure to the aquatic compartment is unlikely.
Direct or indirect exposure ofAluminum dross (ALUFLUX) is highly unlikely.
Additionally, Aluminum dross (ALUFLUX) contains aluminium and aluminium-based compounds,which are insoluble in water. Due to their physico-chemical properties none of the constituents are systemically and biologically available and do not cross biological membranes. The small percentage of soluble, non-toxic salts, (KCl and NaCl) pose no significant threat in terms of quantity. Only aluminum nitride reacts in contact with water and decomposes to ammonia and aluminium hydroxide at a very slow kinetically rate, which pose no significant threat in terms of amounts produced by the reaction.
Due to the inorganic character of all the constituents and decomposition products ofAluminum dross (ALUFLUX) and the absence of intrinsically lipophilic functional groups, which would facilitate the diffusion across biological surfaces (e.g. the fish gill or digestive tract epithelium), a biological uptake via membranes can therefore be excluded. Referring to this uptake, bioaccumulation and a subsequent biomagnification, which might lead to adverse effects along the food chain, is not given.
Against this background and due to the physical-chemical properties of Aluminum dross (ALUFLUX) performance of a study on bioaccumulation is not required under Regulation (EC) No 1907/2006 (REACH).
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