Registration Dossier
Registration Dossier
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EC number: 270-659-9 | CAS number: 68475-76-3 A complex combination of finely divided inorganic particles separated from the exit gases formed during the manufacture of Portland cement. The flue dust consists of uncalcined raw materials along with partially calcined materials. Some Portland cement clinker is usually included. The major constituents of kiln dust are calcium carbonate, clays, shales, quartz and sulfate salts. The following materials may also be present:@Dolomite@Ca(OH)2@Feldspars@CaSO4@Fly ash@KCl@Iron oxides@K2CO3@CaF2@K2SO4@CaO@Na2SO4@Glasses of SiO2, Al.s@Portland cement chemicals [659
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
No test data available. No toxic effects are expected, because only inorganic substances go into solution. The solved kations are potassium, sodium, calcium, magnesium and the solved anions are chloride and sulfate.
Key value for chemical safety assessment
Additional information
Long-term toxicity testing shall be proposed by the registrant if the chemical assessment according to Annex I indicates the need to investigate further the effects on aquatic organisms. Due to the chemical safety assessment no long-term toxicity testing is necessary.
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