What is (NH4)2CO3? Important knowledge about (NH4)2CO3.

Definition of (NH₄)₂CO₃
(NH₄)₂CO₃, also known as Ammonium Carbonate, is a chemical compound consisting of two ammonium ions (NH₄+) and one carbonate ion (CO₃ 2-). The molecular weight of (NH₄)₂CO₃ is 96.09 g/mol. The molecular structure includes: 2 nitrogen atoms, 8 hydrogen atoms, 1 carbon atom, and 3 oxygen atoms.

Properties of (NH₄)₂CO₃
2.1 Physical Properties of (NH₄)₂CO₃: (NH₄)₂CO₃ typically appears as white crystalline particles, odorless or with a slight characteristic odor. Its pH falls around 7.5-8 (at a concentration of 1M at 25°C).
2.2 Chemical Properties of (NH₄)₂CO₃: (NH₄)₂CO₃ has the ability to decompose as the temperature increases, producing ammonia, water, and carbon dioxide. It can also react with acid to produce the corresponding ammonium salt and CO₂.

Common chemical equations involving (NH₄)₂CO₃

• Reaction with acid:
  (NH₄)₂CO₃ + H₂SO₄ -> (NH₄)₂SO₄ + CO₂ + H₂O
• Decomposition reaction:
  (NH₄)₂CO₃ -> 2 NH₃ + CO₂ + H₂O ->

Preparation of (NH₄)₂CO₃
4.1 Laboratory preparation of (NH₄)₂CO₃: (NH₄)₂CO₃ can be prepared from the reaction between ammonia and carbonic acid.
NH₃ + H₂CO₃ -> NH₄HCO₃
NH₄HCO₃ + NH₃ -> (NH₄)₂CO₃
4.2 Industrial preparation of (NH₄)₂CO₃: Industrially, (NH₄)₂CO₃ is typically produced from the reaction between ammonia and carbon dioxide under high pressure.
2 NH₃ + CO₂ -> (NH₄)₂CO₃.