CARBONATE EQUILIBRIA - UC Davis

Soil Chemistry5-1 Section 5- CARBONATE Chemistry CARBONATE EQUILIBRIAC arbonates are arguably the most important dissolved component of soil solutions and in alkaline soilsthis statement is even less disputable. Implicit in this statement is the relationship among dissolved carbonatespecies whether or not they are in equilibrium with solid phase metal carbonates . The simplest example ofcarbonates is the control which dissolved carbon dioxide has on water pH and buffering.

Soil Chemistry 5-2 Section 5- Carbonate Chemistry CASE 1 CO 2 - H 2 O open system Aqueous carbon dioxide reacts to form carbonic acid via the following reaction:

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