Hydrofluoric Acid and Sodium Hydroxide

HF + NaOH → NaF + H₂O

Tổng quan

Hydrofluoric acid, despite being a weak acid (Ka = 6.8 × 10⁻⁴), reacts completely with sodium hydroxide to form sodium fluoride and water. HF is unusually dangerous among weak acids because it penetrates skin and causes deep tissue burns by binding calcium ions in bones. The high heat of neutralization reflects the strong H-F bond.

Người tham gia

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

Ví dụ thực tế

Sodium fluoride from this reaction is the form of fluoride added to municipal water supplies and toothpaste for dental protection.

Tầm quan trọng công nghiệp

HF is essential for glass etching, semiconductor manufacturing, petroleum refining, and uranium processing. Its safe handling requires specialized training.

Tính chất

Loại: Acid-Base
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -68,6 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 Hydrofluoric Acid and Sodium Hydroxide?

The balanced equation is: HF + NaOH → NaF + H₂O.

What type of reaction is Hydrofluoric Acid and Sodium Hydroxide?

Hydrofluoric Acid and Sodium Hydroxide is a acid-base reaction.

Is Hydrofluoric Acid and Sodium Hydroxide exothermic or endothermic?

Hydrofluoric Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -68.6 kJ/mol.