What is K2CO3? Important knowledge about K2CO3.

1. Definition of K₂CO₃

K₂CO₃, also known as Potassium Carbonate or Carbonat Kalium, belongs to the category of chemical compounds of the element Potassium (K) and Carbonate (CO₃). It has a total atomic mass of 138.21 g/mol, including 2 potassium atoms, 1 carbon atom, and 3 oxygen atoms. In the K₂CO₃ molecule, each potassium ion carries 1 electron, while the carbonate ion carries 2 electrons, thus forming an ionic molecular structure.

2. Properties of K₂CO₃

2.1 Physical properties of K₂CO₃: K₂CO₃ is a solid substance, crystalline in nature, colorless and odorless. In water, it dissolves well and has an average pH of about 11.5, indicating a strong alkalinity.

2.2 Chemical properties of K₂CO₃: K₂CO₃ has several important chemical reactions. It can react with heavy metals to form potassium salts and release CO₂ gas. K₂CO₃ can also react with acid to form salts, water, and CO₂ gas.

3. Common chemical equations of K₂CO₃: Some examples of reactions of K₂CO₃ include:

   • K₂CO₃ + HCl -> 2KCl + H₂O + CO₂
   • K₂CO₃ + CH₃COOH -> 2CH₃COOK + H₂O + CO₂

4. Synthesis of K₂CO₃

4.1 Lab synthesis of K₂CO₃: In the laboratory, K₂CO₃ can be synthesized from the reaction of potassium hydroxide with carbon dioxide gas.

4.2 Industrial synthesis of K₂CO₃: In industry, K₂CO₃ is typically produced from the electrolysis process of potassium chloride salt water.