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
Endpoint summary
Administrative data
Description of key information
Additional information
This endpoint is specifically needed for organic substances and less relevant for inorganic substances.
If the substance comes into contact with water two different mechanisms perform. Some constituents react with water and form highly insoluble inorganic hydration products. The other constituents are moderately or highly soluble, because they are inorganic minerals or salts. These constituents dissolve and dissociate in water. It can be reasonably assumed that in the aquatic environment these constituents will normally be completely dissociated into its ions as the water solubility is relatively high compared to the environmental background concentration the elements.
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