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Registration Dossier
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EC number: 308-551-1 | CAS number: 98072-94-7 Natural ilmenite ore is concentrated by selective removal of impurities, chiefly iron, to yield a product enriched in titanium dioxide. The process consists of an optional oxidative roast followed by a reductive roasting stage, an acidic leaching stage and washing and drying the product. Alternatively the process consists of selectively chlorinating the iron oxide present in the reduced ore.
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
No results are available for the bioaccumulation of synthetic rutile in aquatic species. Therefore, read-across is proposed to reliable results for the bioaccumulation of TiO2 in fish, based on analysis of Ti concentration in various organs. Ti concentrations in the fish tissues stayed constant over the concentration range of TiO2 in water tested (0-1 mg TiO2/L), resulting in decreasing BCF with increasing TiO2 concentrations in water. Therefore, synthetic rutile is not considered as bioaccumulative.
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