Hydrofluoric Acid and Sodium Hydroxide

HF + NaOH → NaF + H2O

Descripción general

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.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Hydrofluoric Acid HF 1 (aq)
Reactivo Sodium Hydroxide NaOH 1 (aq)
Producto Water H₂O 1 (l)

Ejemplo cotidiano

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

Importancia industrial

El HF es esencial para el grabado del vidrio, la fabricación de semiconductores, el refinado de petróleo y el procesamiento del uranio. Su manejo seguro es una prioridad crítica de seguridad industrial.

Propiedades

Tipo
Acid-Base
Reversible
No
Energía
Exotérmico
ΔH
-68,6 kJ/mol

Reacciones relacionadas

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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.