Hydrofluoric Acid and Sodium Hydroxide

HF + NaOH → NaF + H2O

概要

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.

参加者

役割 物質 係数 状態
反応物 Hydrofluoric Acid HF 1 (aq)
反応物 Sodium Hydroxide NaOH 1 (aq)
生成物 Water H₂O 1 (l)

日常の例

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

産業上の重要性

フッ化水素酸はガラスエッチング、半導体製造、石油精製、ウラン濃縮処理に不可欠である。フッ化ナトリウムは水道水フッ素添加、歯磨き粉、殺虫剤に利用される。

特性

タイプ
Acid-Base
可逆的
いいえ
エネルギー
発熱性
ΔH
-68.6 kJ/mol

関連する反応

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.