Ascorbic Acid and Sodium Hydroxide

C6H8O6 + NaOH → NaC6H7O6 + H2O

概要

Ascorbic acid (vitamin C) reacts with sodium hydroxide to form sodium ascorbate and water. Despite its name, ascorbic acid is a moderately weak acid (pKa = 4.17) due to the enediol structure that stabilizes the conjugate base through resonance. Sodium ascorbate is better tolerated by the stomach than ascorbic acid.

参加者

役割 物質 係数 状態
反応物 Ascorbic Acid C₆H₈O₆ 1 (aq)
反応物 Sodium Hydroxide NaOH 1 (aq)
生成物 Water H₂O 1 (l)

日常の例

Sodium ascorbate supplements are marketed as buffered vitamin C for people who experience stomach upset from regular ascorbic acid tablets.

産業上の重要性

アスコルビン酸ナトリウムは、食品用抗酸化剤(E301)、色の発色を促進する食肉処理、そして写真における現像剤として使用されています。

特性

タイプ
Acid-Base
可逆的
いいえ
エネルギー
発熱性
ΔH
-53.0 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 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) Acetic Acid and Sodium Hydroxide Neutralization Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Ascorbic Acid and Sodium Hydroxide?
The balanced equation is: C₆H₈O₆ + NaOH → NaC₆H₇O₆ + H₂O.
What type of reaction is Ascorbic Acid and Sodium Hydroxide?
Ascorbic Acid and Sodium Hydroxide is a acid-base reaction.
Is Ascorbic Acid and Sodium Hydroxide exothermic or endothermic?
Ascorbic Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -53.0 kJ/mol.