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Carbonation is the chemical reaction of carbon dioxide to give carbonates, bicarbonates, and carbonic acid.[1] In chemistry, the term is sometimes used in place of carboxylation, which refers to the formation of carboxylic acids.
In inorganic chemistry and geology, carbonation is common. Metal hydroxides (MOH) and metal oxides (M'O) react with CO2 to give bicarbonates and carbonates:
MOH + CO2 → M(HCO3)
M'O + CO2 → M'CO3
In reinforced concrete construction, the chemical reaction between carbon dioxide in the air and calcium hydroxide and hydrated calcium silicate in the concrete is known as neutralisation.
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