carbonic acid

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Related to carbonic acid: carbolic acid

carbonic acid,

H2CO3, a weak dibasic acid (see acids and basesacids and bases,
two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Properties
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) formed when carbon dioxidecarbon dioxide,
chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. It does not burn, and under normal conditions it is stable, inert and nontoxic.
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 dissolves in water; it exists only in solution. Carbonic acid forms carbonate and bicarbonate (or acid carbonate) salts (see carbonatecarbonate
, chemical compound containing the carbonate radical or ion, CO3−2. Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a metal hydroxide) with carbonic acid.
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) by reaction with bases. It contributes to the sharp taste of carbonated beverages.

Carbonic Acid


H2CO3, a weak dibasic acid that under normal conditions exists only in dilute aqueous solutions. Carbonic acid is formed when carbon dioxide dissolves in water: Carbonic Acid. Under normal conditions, the total amount of carbonic acid in a solution saturated with CO2 does not exceed 1 percent of the CO2 content. The dissociation constants are K1 = 4.0 × 10–7 and K2 = 5.2 × 10–11 at 18°C. Carbonic acid decomposes completely when its solutions are heated, liberating CO2. Depending on the basicity, the acid forms two series of salts. The neutral salts, known as carbonates, have the Carbonic Acid anion, and the acid salts, known as bicarbonates, have the Carbonic Acid anion.

carbonic acid

[kär′bän·ik ′as·əd]
(inorganic chemistry)
H2CO3 The acid formed by combination of carbon dioxide and water.

carbonic acid

a weak acid formed when carbon dioxide combines with water: obtained only in aqueous solutions, never in the pure state. Formula: H2CO3
References in periodicals archive ?
Along the way, water absorbs carbon dioxide to form an acid called carbonic acid.
When atmospheric carbon dioxide dissolves in water it forms carbonic acid, increasing the acidity of the ocean.
This atom could have stood witness to the birth of life, fallen on Earth as part of a carbonic acid molecule in the earliest acid rain, and been part of Caesar's last breath.
Poor ventilation of the alveoli would retain carbon dioxide, which is carbonic acid in solution.
It catalyzes the reversible reaction involving the hydration of carbon dioxide and the dehydration of carbonic acid.
In the mouth, an enzyme converts carbon dioxide into carbonic acid, which is broken down further into substances that bind to the receptors.
There, carbon dioxide combines with water to form carbonic acid, which leaches out calcium, forming either insoluble calcium carbonate or soluble calcium and bicarbonate ions that dissolve into the groundwater and ultimately end up at the bottom of the ocean.
Liquid water snares carbon dioxide, creating carbonic acid, which then reacts with surface rock to produce solid carbonates.
In moist soil, the CO2 will combine with water to form carbonic acid (H2CO3).
This experiment was designed to test the hypothesis that using different concentration of carbonic acid (H2CO3) would decrease the internal, external temperature of the fuel and the heat flux of the diffusion and smoldering flames much faster and effectively than just water in a pressurized cylinder, 0.
And while new technology can be a lot more productive, Wight says he has no doubt the environmentally conscious would give him two thumbs up for eliminating chemicals like sulphuric acid and carbonic acid from the manufacturing equation.