Daily Uses:
- Used in infant formula as a nutrient supplement.
- Added to soups and sauces to stabilize emulsions.
- Found in dishwasher rinse aids to prevent spotting.
Application Fields:
- Food additives, pharmaceutics, water treatment, cleaning products.
Synthesis Method:
- Neutralization: Mix phosphoric acid (H₃PO₄) with sodium hydroxide (NaOH) in a 1:2 molar ratio.
- Chemical equation: \(H_3PO_4 + 2NaOH \rightarrow Na_2HPO_4 + 2H_2O\)