Hydrofluoric Acid and Sodium Hydroxide

HF + NaOH → NaF + H2O

Übersicht

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.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Hydrofluoric Acid HF 1 (aq)
Reaktant Sodium Hydroxide NaOH 1 (aq)
Produkt Water H₂O 1 (l)

Alltägliches Beispiel

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

Industrielle Bedeutung

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

Eigenschaften

Typ
Acid-Base
Reversibel
Nein
Energie
Exotherm
ΔH
-68,6 kJ/mol

Verwandte Reaktionen

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.