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Environmental fate & pathways

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Titanium tetrachloride is not stable under environmental conditions. It hydrolyses rapidly to finally titanium dioxide (CAS 13463-67-7) and hydrogen chloride (CAS 7647-01-0), which dissociates into naturally in high background concentrations occurring ions. The environmental fate of titanium dioxide is likely to be comparable to the naturally occurring mineral rutile, which is inert in the environment like the hydrogen chloride and its dissociation products.

In conclusion rapid hydrolysis of titanium tetrachloride in contact with water or humidity in air or soil leads to transformation into environmentally occurring inorganic inert compounds. The environmental hazard assessment needs to be based on these transformation products.