What is K2SO4? Important knowledge about K2SO4

  1. Definition of K2SO4:
    1.1 Names:
    1.1.1 Common name: Potassium sulfate.
    1.1.2 English name: Potassium sulfate.
    1.2 Atomic structure: K2SO4 has 2 atoms of K (potassium), 1 atom of S (sulfur), and 4 atoms of O (oxygen).
    1.3 Atomic weight: K2SO4 has a molar mass of 174.26 g/mol.
    1.3.1 Molecular structure: K2SO4 has a molecular structure consisting of 2 K+ ions bonded to 1 SO42- ion.
    1.4 Ion structure: K+ ion and SO42- ion.
  2. Properties of K2SO4:
    2.1 Physical properties of K2SO4:
    State: Solid
    Color: White
    Odor: Odorless
    pH: 7 (neither acidic nor alkaline)
    2.2 Chemical properties of K2SO4: In chemistry, K2SO4 is known for its ability to form complexes with many other molecules.
  3. Common chemical equations with K2SO4:
    K2SO4 often participates in ion exchange reactions or water absorption. K2SO4 + BaCl2 -> 2KCl + BaSO4
    (In this reaction, potassium sulfate reacts with barium chloride to form potassium chloride and precipitate barium sulfate.)

    K2SO4 + Ba(OH)2 -> 2KOH + BaSO4
    (In this reaction, potassium sulfate reacts with barium hydroxide to form potassium hydroxide and precipitate barium sulfate.)

    K2SO4 + Ca(OH)2 -> 2KOH + CaSO4
    (In this reaction, potassium sulfate reacts with calcium hydroxide to form potassium hydroxide and calcium sulfate.)

  4. Preparation of K2SO4:
    4.1 Laboratory preparation of K2SO4: K2SO4 can be prepared by neutralizing sulfuric acid (H2SO4) with potassium hydroxide (KOH).
    4.2 Industrial preparation of K2SO4: In industry, K2SO4 is commonly produced by reacting potassium chloride (KCl) with sulfuric acid (H2SO4).

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