What is K3PO4? Important knowledge about K3PO4.

1. Definition of K₃PO₄

K₃PO₄ is the chemical formula of Potassium Phosphate, a colorless solid that is soluble in water. Its English name is Tripotassium phosphate. K₃PO₄ has a molar mass of 212.27 g/mol. The K₃PO₄ molecule is composed of three K+ (potassium) ions and one PO₄₃- (phosphate) ion.

2. Properties: K₃PO₄

2.1 Physical properties of K₃PO₄

K₃PO₄ is a colorless, odorless solid that easily dissolves in water to form a neutral pH solution.

2.2 Chemical properties of K₃PO₄

K₃PO₄ has the ability to react with acids to form potassium salts and phosphoric acid.

3. Commonly encountered chemical equations of K₃PO₄

• Acid reactions:
  K₃PO₄ + HCl -> KCl + H₃PO₄
  K₃PO₄ + HNO₃ -> KNO₃ + H₃PO₄
  K₃PO₄ + H₂SO₄ -> K₂SO₄ + H₃PO₄

• Non-metal reactions:
  K₃PO₄ + O₂ -> K₂O + P₄O₁₀
  K₃PO₄ + Cl₂ -> KCl + PCl₅
  K₃PO₄ + N₂ -> KNO₃ + P₄O₁₀

• Salt reaction:
  K₃PO₄ + NaCl -> KCl + Na₃PO₄

4. Synthesis of K₃PO₄

4.1 Laboratory synthesis of K₃PO₄

K₃PO₄ is usually synthesized by reacting potassium hydroxide (KOH) with phosphoric acid (H₃PO₄).

KOH + H₃PO₄ -> K₃PO₄ + H₂O

4.2 Industrial synthesis of K₃PO₄

The industrial-scale synthesis of K₃PO₄ is usually carried out through the hydrolysis of potassium phosphate, a salt of potassium and phosphoric acid.