Registration Dossier
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.
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Administrative data
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Additional information
No reliable results are available for synthetic rutile regarding environmental fate and pathways. Therefore, stability and biodegradation are waived as well as read-across is proposed to bioaccumulation, transport and distribution and adsorption / desorption of TiO2 and Ti metal.
Synthetic rutile is not considered as bioaccumulative as Ti concentrations in fish tissues stayed constant over the concentration range of TiO2 in water tested, resulting in decreasing BCF with increasing TiO2 concentrations in water and BSAF factors for plants vary between 0.0002 to 0.0008 kg/kg and point to the absence of bioaccumulation of Ti in plants. The results on available monitoring data reflect equilibrium conditions for Ti in the environment, regardless the speciation of Ti.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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