What does Na3BO3 represent? Important knowledge about Na3BO3.

  1. Definition of Na3BO3:
    1.1. Names:
    1.1.1. Common name: Sodium borate, Borax.
    1.1.2. English name: Sodium borate.
    1.2. Atomic structure: Na3BO3 consists of 3 sodium atoms (Na), 1 boron atom (B) and 3 oxygen atoms (O).
    1.3. Atomic mass: The atomic mass of Na3BO3 is 123.81 grams/mol.
    1.4. Ion structure: Na3BO3 consists of sodium ion (Na+) and borate ion (BO3-).

  2. Properties of Na3BO3:
    2.1. Physical properties:

    • State: Solid, colorless crystals.
    • Color: Colorless.
    • Smell: No distinctive odor.
    • pH: When dissolved in water, it forms an alkaline solution (pH > 7).
      2.2. Chemical properties: Na3BO3 can react with acid to form salt and water.

  3. Common chemical reactions:
    For example: The reaction of Na3BO3 with hydrochloric acid HCl
    2Na3BO3 + 6HCl -> 2B(OH)3 + 6NaCl + 3H2O.

  4. Preparation of Na3BO3:
    4.1. Laboratory preparation: Na3BO3 can be prepared by reacting Na2B4O7 (sodium borate) solution with water.
    4.2. Industrial preparation: Na3BO3 is usually prepared from the borax ore (Na2[B4O5(OH)4]·8H2O) through a heating process.

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