What is Ca3(AsO4)2? Important knowledge about Ca3(AsO4)2.

  1. Definition of Ca3(AsO4)2
    Ca3(AsO4)2, commonly referred to as Calcium arsenate in English. It contains 3 calcium atoms, 2 arsenic atoms, and 8 oxygen atoms, with a total atomic weight of 398.07 g/mol. The structure of this molecule consists of Ca+2 atoms bonded with AsO4-3 atoms to form a complex ion.

  2. Properties of Ca3(AsO4)2
    The physical properties of Ca3(AsO4)2 include: a colorless, odorless solid, with a neutral PH. The chemical properties include: reacts with strong acids to form salts and reacts with alkali metals to form hydroxides.

  3. Common chemical equations for Ca3(AsO4)2
    Reaction with acid:
    Ca3(AsO4)2 + 6HCl -> 3CaCl2 + 2H3AsO4
    Ca3(AsO4)2 + 6HNO3 -> 3Ca(NO3)2 + 2H3AsO4
    Reaction with alkali metals:
    Ca3(AsO4)2 + 6NaOH -> 3Ca(OH)2 + 2Na3AsO4

  4. Synthesis of Ca3(AsO4)2
    In the lab, Ca3(AsO4)2 is typically synthesized from the reaction between calcium and arsenic acid. Industrially, it is produced from the reaction between calcium phosphate and arsenic acid in a hot water environment.

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