What is HgCO3? Important knowledge about HgCO3.

  1. Definition of HgCO3
    HgCO3, also known as Mercury(II) carbonate or Carbonate mercury(II) in English. This is a white solid, insoluble in water, with an atomic mass of 261.21 g/mol. Its molecular structure consists of a mercury(II) ion, Hg2+, and a carbonate ion, CO32-. The mercury(II) ion has two electrons in the outermost layer, while the carbonate ion has 24 electrons.

  2. Properties: HgCO3
    2.1. Physical properties: HgCO3 is a white, odorless solid. It is an alkali, so it has a pH greater than 7.
    2.2. Chemical properties: HgCO3 decomposes when heated, releases mercury, carbon dioxide gas, and oxygen gas.

  3. Common chemical equations: HgCO3 can react with some metals, acids, non-metals, and salts. Some examples include reacting with hydrochloric acid to form mercury(II) chloride salt, carbon dioxide gas, and water: HgCO3 + 2HCl -> HgCl2 + CO2 + H2O.

  4. Synthesize HgCO3
    4.1. Laboratory synthesis: HgCO3 can be synthesized from the reaction between mercury(II) nitrate and sodium bicarbonate: Hg(NO3)2 + 2NaHCO3 -> HgCO3 + 2NaNO3 + H2O + CO2.
    4.2. Industrial synthesis: Currently, there are no industrial synthesis methods for HgCO3 because this substance is very toxic and has limited application in industry.

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