Phosphoric Acid Complete Neutralization

H3PO4 + 3NaOH → Na3PO4 + 3H2O

Descripción general

Complete neutralization of triprotic phosphoric acid requires three equivalents of sodium hydroxide, producing trisodium phosphate (TSP). The resulting solution is strongly basic because the phosphate ion is a moderately strong base. TSP was once the workhorse of industrial and household cleaning.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Phosphoric Acid H₃PO₄ 1 (aq)
Reactivo Sodium Hydroxide NaOH 3 (aq)
Producto Water H₂O 3 (l)

Ejemplo cotidiano

TSP was a common heavy-duty household cleaner for walls and surfaces before phosphate regulations limited its use due to water pollution concerns.

Importancia industrial

Base de la producción de fosfato trisódico para detergentes, tratamiento de agua y recubrimientos metálicos.

Propiedades

Tipo
Acid-Base
Reversible
No
Energía
Exotérmico
ΔH
-173,0 kJ/mol

Reacciones relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Phosphoric Acid Complete Neutralization?
The balanced equation is: H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O.
What type of reaction is Phosphoric Acid Complete Neutralization?
Phosphoric Acid Complete Neutralization is a acid-base reaction.
Is Phosphoric Acid Complete Neutralization exothermic or endothermic?
Phosphoric Acid Complete Neutralization is exothermic (releases energy). The enthalpy change (ΔH) is -173.0 kJ/mol.