Pourbaix Diagram for Tellurium-Water

Te (tellurium, brown black, amorphous), Te02 (tellurous anhydride, white), Te02 hydr. (tellurous acid, H2Te03 or Te02-H20, white, amorphous), TeOs hydr. (orthotelluric acid, H6Te06 or Te03 3H20, colorless, cubic or monoclinic). [Pg.65]

H2Te (hydrogen telluride, colorless), HTe (hydrogen telluride ion, colorless), Te (telluride ion, colorless), Te (ditelluride ion, red), Te + (tellurous ion), HTeOj (telluryl ion), HTeO (acid tellurite ion, colorless), TeO (tellurite ion, colorless), H2Te04 (telluric acid, colorless), HTeOJ (acid tellurate ion, colorless), TeO (tellurate ion, colorless). [Pg.66]

The potential-pH diagram for the system tellurium-water at 25 °C is given in Fig. 2.4. It was constructed by using the following homogeneous and heterogeneous (solid/liquid, gas/liquid) equilibria, involving redox and non-redox processes, in which all of the above-referred dissolved substances of tellurium, as well as the solid ones, participate [Pg.66]

Te (solution saturated with elementary Te) TeOsCs) -h 2H++ 2e- Te02aq(s) -h H2O [Pg.66]

One solid substance and one dissolved 12 HTeO+ -1- 5H+4- 6e- H2Te + 2H2O [Pg.66]

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