Lactic Acid and Sodium Hydroxide

CH3CHOHCOOH + NaOH → CH3CHOHCOONa + H2O

概述

Lactic acid, produced during anaerobic metabolism in muscles, reacts with sodium hydroxide to form sodium lactate and water. Lactic acid has a pKa of 3.86 and exists in L and D enantiomeric forms. L-lactic acid accumulation causes the burning sensation during intense exercise.

参与者

角色 物质 系数 状态
反应物 Lactic Acid C₃H₆O₃ 1 (aq)
反应物 Sodium Hydroxide NaOH 1 (aq)
产物 Water H₂O 1 (l)

日常示例

The muscle burn during intense exercise is caused by lactic acid accumulation. Sodium lactate is used in IV fluids (Ringer's lactate) for rehydration.

工业重要性

乳酸钠通过乳酸发酵（利用葡萄糖或其他糖类）与烧碱中和制备，是医疗输液（乳酸林格液）和食品防腐剂的重要成分。乳酸是合成聚乳酸（PLA）生物可降解塑料的前体，全球聚乳酸产量快速增长，逐步替代石化塑料。

属性

类型
Acid-Base
可逆
否
能量
放热
ΔH
-55.0 kJ/mol

相关反应

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) Hydrochloric Acid and Sodium Hydroxide Neutralization Nitric Acid and Potassium Hydroxide Neutralization Hydrochloric Acid and Barium Hydroxide

Frequently Asked Questions

What is the equation for Lactic Acid and Sodium Hydroxide?
The balanced equation is: CH₃CHOHCOOH + NaOH → CH₃CHOHCOONa + H₂O.
What type of reaction is Lactic Acid and Sodium Hydroxide?
Lactic Acid and Sodium Hydroxide is a acid-base reaction.
Is Lactic Acid and Sodium Hydroxide exothermic or endothermic?
Lactic Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -55.0 kJ/mol.