Preparation and properties of trivalent titanium compounds, TiCl 3 and TiOCl

Abstract

In this study, a simple process for preparation of trivalent titanium compounds, TiCl 3 and TiOCl, was provided. TiCl 3 was obtained by the distillation of a commercially available reagent, a mixture of TiCl 3 and AlCl 3, at 700°C (973 K). The obtained TiCl 3 contains contamination elements from the experimental set-up made from stainlesssteel. The cationic concentration of Fe was 2.2 mol%, because of the oxidation of Fe by TiCl 4 which formed by the disproportionation reaction of TiCl 3. On the other hand, the cationic concentration of Ni was very low because Ni is thermodynamically stable in the existence of TiCl 4. TiOCl was obtained by the reaction of TiCl 3 and Ti 2O 3 at 600°C (873 K). TiOCl is instable in the air since it reacts with H 2O to form Ti 2O 3. Copyright © 2011 De Gruyter.