2 HgCl2 + SnCl2 + 2 HCl → H2[SnCl6] + Hg2Cl2

This is a complexation reaction: H2[SnCl6] is the formed complex.

This is an oxidation-reduction (redox) reaction:

SnII - 2 e- → SnIV (oxidation)

2 HgII + 2 e- → 2 HgI (reduction)

SnCl2 is a reducing agent, HgCl2 is an oxidizing agent.

Reactants:

  • HgCl2 – Mercury(II) chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Mercury dichloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Mercuric chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Corrosive sublimate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, ClHgCl source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless or white solid source: wikipedia, accessed: 2019-09-27; White crystals or powder source: ICSC, accessed: 2019-09-04
  • SnCl2 – Tin(II) chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Tin dichloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Stannous chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Tin salt source: wikipedia, accessed: 2019-09-27, Tin protochloride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04
    • Appearance: White crystalline solid source: wikipedia, accessed: 2019-09-27; Colourless or white crystals source: ICSC, accessed: 2019-09-04
  • HCl – Chlorane source: wikipedia, accessed: 2019-09-27, Hydrogen chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Hydrochloric acid source: wikipedia, accessed: 2019-09-27source: NIOSH NPG, accessed: 2019-09-02, M source: wikipedia, accessed: 2019-09-27, Uriatic acid source: wikipedia, accessed: 2019-09-27
    • Appearance: Colorless, transparent liquid, fumes in air if concentrated source: wikipedia, accessed: 2019-09-27; Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02

Products:

  • H2[SnCl6]
  • Hg2Cl2 – Dimercury dichloride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04
    • Other names: Mercury(I) chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Mercurous chloride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02, Calomel source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Appearance: White solid source: wikipedia, accessed: 2019-09-27; White crystalline powder source: ICSC, accessed: 2019-09-04