Phosphoric Acid Complete Neutralization

H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Phosphoric Acid H₃PO₄	1	(aq)
Chất phản ứng	Sodium Hydroxide NaOH	3	(aq)
Sản phẩm	Water H₂O	3	(l)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Trisodium phosphate is used in boiler water treatment, as a food additive, and in heavy-duty cleaning. Environmental phosphate bans have reduced its use in consumer products.

Tính chất

Loại: Acid-Base
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -173,0 kJ/mol

Phản ứng liên quan

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.