Daily Uses:
- Used in liquid soaps to adjust pH.
- Added to cheese spreads to improve smoothness.
- Found in fertilizers for high-potassium crops.
Application Fields:
- Cleaning products, food processing, agriculture, textile industry.
Synthesis Method:
- Complete neutralization: React phosphoric acid (H₃PO₄) with excess potassium hydroxide (KOH).
- Chemical equation: \(H_3PO_4 + 3KOH \rightarrow K_3PO_4 + 3H_2O\)