carbonic acid

American  

noun

1. the acid, H 2 CO 3 , formed when carbon dioxide dissolves in water, known in the form of its salts and esters, the carbonates.

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carbonic acid British  

noun

1. a weak acid formed when carbon dioxide combines with water: obtained only in aqueous solutions, never in the pure state. Formula: H 2 CO 3

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carbonic acid Scientific  

/ kär-bŏn′ĭk /

1. A weak, unstable acid present in solutions of carbon dioxide in water. It gives carbonated beverages their sharp taste. Chemical formula: H ₂ CO ₃ .

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Etymology

Origin of carbonic acid

First recorded in 1785–95

Example Sentences

Carbonic acid, H2CO3, is an example of a weak diprotic acid.

From Textbooks • Feb. 14, 2019

Carbonic acid is an important agent in two chemical weathering reactions, hydrolysis, and dissolution.

From Textbooks • Jan. 1, 2017

Carbonic acid levels in the blood are controlled by the expiration of CO2 through the lungs.

From Textbooks • Jun. 19, 2013

Carbonic acid is the most abundant gaseous product of the peaty decomposition.

From Peat and its Uses as Fertilizer and Fuel by Johnson, Samuel W. (Samuel William)

Carbonic acid is also soluble to a certain, though not large extent, in water.

From The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association by Shonk, Albert