Carbonic Acid Dissociation (Blood Buffer)

H2CO3 ⇌ HCO3− + H+

概述

The carbonic acid/bicarbonate buffer system is the primary blood buffer maintaining pH between 7.35 and 7.45. Carbon dioxide dissolves in blood to form carbonic acid, which dissociates to bicarbonate and hydrogen ions. The enzyme carbonic anhydrase catalyzes the CO₂ hydration. Disruption causes acidosis or alkalosis.

参与者

角色 物质 系数 状态
反应物 Carbonic Acid H₂CO₃ 1 (aq)

日常示例

When you exercise hard and breathe heavily, your body is using this buffer system to prevent dangerous pH changes from metabolic acid production.

工业重要性

理解碳酸氢盐缓冲在医学上对管理酸碱失衡、血库工作以及设计透析液至关重要。

属性

类型
Acid-Base
可逆
是
能量
吸热
催化剂
Carbonic anhydrase (in blood)

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 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 Carbonic Acid Dissociation (Blood Buffer)?
The balanced equation is: H₂CO₃ ⇌ HCO₃⁻ + H⁺.
What type of reaction is Carbonic Acid Dissociation (Blood Buffer)?
Carbonic Acid Dissociation (Blood Buffer) is a acid-base reaction. It is reversible under certain conditions.
Is Carbonic Acid Dissociation (Blood Buffer) exothermic or endothermic?
Carbonic Acid Dissociation (Blood Buffer) is endothermic (absorbs energy).
What conditions are needed for Carbonic Acid Dissociation (Blood Buffer)?
This reaction requires a catalyst (Carbonic anhydrase (in blood)).