Ascorbic Acid and Sodium Hydroxide

C6H8O6 + NaOH → NaC6H7O6 + H2O

概述

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.

参与者

角色 物质 系数 状态
反应物 Ascorbic Acid C₆H₈O₆ 1 (aq)
反应物 Sodium Hydroxide NaOH 1 (aq)
产物 Water H₂O 1 (l)

日常示例

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

工业重要性

抗坏血酸钠用作食品抗氧化剂(E301)、肉类腌制中加速发色,以及摄影显影剂。

属性

类型
Acid-Base
可逆
否
能量
放热
ΔH
-53.0 kJ/mol

相关反应

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.