What is Na3PO4? Important Knowledge about Na3PO4.

Definition of Na₃PO₄
Na₃PO₄, also known as sodium phosphate, is a colorless solid that exists in crystal or powder form. It is a salt of phosphoric acid (H₃PO₄) and sodium. Na₃PO₄ consists of 3 sodium atoms, 1 phosphorus atom, and 4 oxygen atoms. Its molar mass is 163.94 g/mol. Sodium phosphate is chemically structured as 3Na+ and PO₄₃-.

Properties of Na₃PO₄
Na₃PO₄ is a solid, colorless and odorless substance with a neutral or slightly alkaline pH. It is highly soluble in water but insoluble in organic solvents such as ethanol and acetone. As the temperature increases, it can decompose.

Common chemical reactions of Na₃PO₄
Na₃PO₄ is often used in chemical reactions such as exchange reactions, neutralization reactions, and salt formation reactions. For example:

• Na₃PO₄ + 3HCl -> H₃PO₄ + 3NaCl
• 5Na₃PO₄ + 3H₃PO₄ -> 15H₂O + Na₅P₃O₁₀
• 2Na₃PO₄ + 3BaCl₂ -> Ba₃(PO₄)₂ + 6NaCl

Synthesis of Na₃PO₄
Na₃PO₄ can be synthesized through the reaction between sodium hydroxide and phosphoric acid:

• 3NaOH + H₃PO₄ -> Na₃PO₄ + 3H₂O
  In industry, sodium phosphate is typically produced by a reaction between sodium phosphoric and soda lime.