What is Na2CO4? Important knowledge about Na2CO4.

Definition of Na₂CO₄:
1.1 The common name of Na₂CO₄ is Sodium Carbonate Soda.
1.2 Its English name is Sodium Carbonate.
1.3 Na₂CO₄ has a molar mass of 106 g/mol.
1.4 The molecular structure of Na₂CO₄ includes two sodium atoms, one carbon atom, and four oxygen atoms.
1.5 The ionic structure of Na₂CO₄ consists of two Na+ ions and one CO₃^2- ion.

Properties of Na₂CO₄:
2.1 The physical properties of Na₂CO₄: In solid state, Na₂CO₄ is white, odorless, and has a PH of around 11 when dissolved in water.
2.2 The chemical properties of Na₂CO₄: Na₂CO₄ is capable of reacting with acid to form salt and CO₂ gas.

Common chemical reactions of Na₂CO₄:
Reactions with acid:

• Na₂CO₃ + H₂SO₄ -> Na₂SO₄ + H₂O + CO₂
• Na₂CO₃ + 2HCl -> 2NaCl + H₂O + CO₂
• Na₂CO₃ + 2CH₃COOH -> 2CH₃COONa + H₂O + CO₂

Synthesis of Na₂CO₄:
4.1 Laboratory synthesis of Na₂CO₄: Na₂CO₃ can be synthesized from the thermal decomposition of NaHCO₃.
4.2 Industrial synthesis of Na₂CO₄: On an industrial scale, Na₂CO₃ is typically produced by the Solvay method, which involves the reaction of table salt and ammonia in water to form NaHCO₃, which is then thermally decomposed to yield Na₂CO₃.