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
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
No acute (short term) toxicity to fish below a concentration of 11.1 mg/L, due to a Klimisch 1 study result.
Key value for chemical safety assessment
Additional information
Flue Dust did not cause any effects to zebrafish after 96 h when tested with a nominal test item concentration of 11.1 mg/L. Therefore the NOEC (0 – 96 h) is 11.1 mg/L. LC50, LC100 and LC0 values are greater 11.1 mg/L.
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