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EC number: 231-728-9
CAS number: 7705-07-9
In water, titanium trichloride rapidly hydrolyses to HCl and TiO2, which
is insoluble under environmental conditions and is naturally present in
the environment. Bioaccumulation is therefore not expected to be of
concern. This is supported by the study conducted with TiO2
nanoparticles, by Federici et al., using rainbow trout (Oncorhynchus
mykiss) as test organism. The titanium concentrations measured in fish
exposed to titanium dioxide nanoparticles for 14 days, were equivalent
to the concentrations measured in the control organisms. The tissue
concentrations of Ti metal reported (0.1–0.5 mol/g dry weight) were also
broadly similar to background levels in shellfish (0.04–1.34 mol/g dry
weight, Bustamante and Miramand, 2005) and laboratory mice (1–4 mol/g
wet weight depending on the organ,Wang et al., 2007). By calculation,
BCF values up to 352 L/kg were obtained for the test fish, but the BCF
calculated for control fish was in the same range (383 L/kg). There was
thus no indication of accumulation of titanium in fish organs during the
study (Federici, 2007).
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