What is Hg2Cl2? Important knowledge about Hg2Cl2.

  1. Definition of Hg2Cl2
    Hg2Cl2, also known as calomel or mercury(I) chloride, is a chemical compound of mercury and chlorine with the molecular formula Hg2Cl2. Its English name is Mercury(I) Chloride. This compound has an atomic mass of 472.09 g/mol. Its molecular structure consists of two mercury atoms and two chlorine atoms. In its ionic structure, there is a mercury(I) ion (Hg2+2) combined with two chlorine ions (Cl-).

  2. Properties: Hg2Cl2
    Hg2Cl2 is a colorless, odorless solid compound that is insoluble in water. The chemical properties of Hg2Cl2 indicate that it is also quite stable when exposed to air. It primarily reacts with compounds containing sulfide, nitrite, iodide, and bromide.

  3. Common chemical equations involving Hg2Cl2
    Because Hg2Cl2 is very stable, it does not typically participate in reactions with metals, acids, or non-metals. However, when Hg2Cl2 reacts with KI salt, it forms HgI2 and KCl: Hg2Cl2 + 2KI -> 2HgI2 + 2KCl.

  4. Synthesis of Hg2Cl2
    Hg2Cl2 can be synthesized in the laboratory through the reaction of mercury with chlorine. Industrially, it is usually produced from mercury and hydrochloric acid: Hg + HCl -> Hg2Cl2 + H2.

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