H6TeO6 + 3 SO2 → Te + 3 H2SO4

This is an oxidation-reduction (redox) reaction:

TeVI + 6 e- → Te0 (reduction)

3 SIV - 6 e- → 3 SVI (oxidation)

H6TeO6 is an oxidizing agent, SO2 is a reducing agent.

Reactants:

  • H6TeO6 – Hexahydroxidotellurium source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02
    • Other names: Telluric acid source: wikipedia, accessed: 2019-09-28, Orthotelluric acid source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02, Tellurium(VI) hydroxide source: wikipedia, accessed: 2019-09-28
    • Appearance: White monoclinic crystals source: wikipedia, accessed: 2019-09-28
  • SO2 – Sulfur dioxide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Sulfurous anhydride source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sulphur dioxide source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02, Sulfurous acid anhydride source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-28; Colourless gas or compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02

Products:

  • Te
    • Names: Tellurium source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Te source: wikidata, accessed: 2019-09-07, Element 52 source: wikidata, accessed: 2019-09-07
    • Appearance: Dark grey-to-brown amorphous powder, with metal characteristics or silvery-white, lustrous crystalline solid source: ICSC, accessed: 2019-09-04; Odorless, dark-gray to brown, amorphous powder or grayish-white, brittle solid. source: NIOSH NPG, accessed: 2019-09-02
  • H2SO4 – Sulfuric acid source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-07source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Oil of vitriol source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Sulfuric acid, concentrated (> 51% and < 100%) source: ICSC, accessed: 2019-09-04, H2SO4 source: wikidata, accessed: 2019-09-07
    • Appearance: Clear, colorless liquid source: wikipedia, accessed: 2019-09-27; Odourless colourless oily hygroscopic liquid source: ICSC, accessed: 2019-09-04; Colorless to dark-brown, oily, odorless liquid. [Note: Pure compound is a solid below 51°F. Often used in an aqueous solution.] source: NIOSH NPG, accessed: 2019-09-02