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EC number: 231-728-9
CAS number: 7705-07-9
Does not significantly accumulate to organisms.
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 a
problem in the environment. 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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