Carbonic acid

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Carbonic acid
Structural formula
Ball-and-stick model
IUPAC name
Carbonic acid
Ither names
Carbon dioxide solution; Dihydrogen carbonate; acid o air; Aerial acid; Hydroxymethanoic acid
463-79-6 YesY
ChEBI CHEBI:28976 YesY
ChEMBL ChEMBL1161632 YesY
ChemSpider 747 YesY
Jmol-3D images Image
KEGG C01353 YesY
Molar mass 62.03 g/mol
Density 1.668 g/cm3
Exists only in solution
Acidity (pKa) 6.367 (pKa1), 10.32 (pKa2)
Except whaur otherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Carbonic acid is the chemical compoond wi the formula H2CO3 (equivalently OC(OH)2). It is an aa a name sometimes given tae solutions o carbon dioxide in watter (carbonatit watter), acause such solutions contain smaa amoonts o H2CO3. Carbonic acid, which is a weak acid, furms twa kinds o sauts, the carbonates an the bicarbonates. In geology, Carbonic acid causes limestane tae dissolve producin calcium bicarbonate which leads tae mony limestone featurs such as stalactites an stalagmites.