What is H2Cr4O7? Important knowledge about H2Cr4O7.

  1. Definition of H2Cr4O7
    H2Cr4O7, also known as chromic acid or dichromic acid, doesn’t have a specific English name as it is commonly known by its chemical formula. H2Cr4O7 consists of two hydrogen atoms, four chromium atoms, and seven oxygen atoms. The molar mass of H2Cr4O7 is 294.185 g/mol. The H2Cr4O7 molecule is formed from two hydrogen ions (H+), four chromium ions (Cr3+), and seven oxygen ions (O2-).

  2. Properties of H2Cr4O7
    2.1 Physical properties of H2Cr4O7
    H2Cr4O7 is typically found in a solid state, with an orange-red color and no distinctive smell. Its pH is very low, indicating that chromic acid is a strong acid.
    2.2 Chemical properties of H2Cr4O7
    H2Cr4O7 has a strong oxidizing property, it can convert metal atoms into metal ions.

  3. Common chemical equation of H2Cr4O7
    H2Cr4O7 often participates in oxidation reactions, so it can create a variety of different reactions with metals, acids, non-metals, and salts.

  4. Preparation of H2Cr4O7
    4.1 Laboratory Preparation of H2Cr4O7
    In the laboratory, H2Cr4O7 is usually prepared from CrO3 and H2SO4.
    4.2 Industrial Preparation of H2Cr4O7
    On an industrial scale, H2Cr4O7 is typically made from chromite ore by reacting with sulfuric acid.

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