Figure 4.

The dependence of lg$([\equiv \overline{\mathrm{Ti}-{\mathrm{L}}_{\mathrm{n}}}]/[\equiv \overline{\mathrm{Ti}-{\left(\mathrm{OH}\right)}_{\mathrm{n}}}])$ on lg[HL], where HL is a triphenylmethane dye. PV—pyrocatechol violet; ECR—eriochrome cyanine R; CAS—chrome azurol S. PV—pyrocatechol violet (λ 640 nm, pH 7.3, 10 min); ECR—eriochrome cyanine R (λ 570 nm, pH 2.0); CAS—chrome azurol S (λ 550 nm, pH 3.0). m/V = 0.10 g/5.0 mL; time of contact is 10 min.