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Environmental fate & pathways

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Titanium tetrachloride is well known to rapidly hydrolyse in contact with water: TiCl4 + H2O -> TiO2 + 4 HCl. Accordingly, TiCl4 is labeled with R14: "Reacts violently with water" in the Annex 1 of Directive 67/548/EEC. However, the determination of the rate of hydrolysis is difficult using standard methods, since the reaction consists of several intermediate stages.