Carbonic Acid Dissociation (Blood Buffer)

H2CO3 ⇌ HCO3− + H+

Übersicht

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.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Carbonic Acid H₂CO₃ 1 (aq)

Alltägliches Beispiel

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

Industrielle Bedeutung

Understanding the bicarbonate buffer is essential in medicine for managing acid-base disorders, in blood banking, and in designing dialysis solutions.

Eigenschaften

Typ
Acid-Base
Reversibel
Ja
Energie
Endotherm
Katalysator
Carbonic anhydrase (in blood)

Verwandte Reaktionen

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)).