දියවන අතර,Na2CO3 + CO2 + H2O → 2 NaHCO3Mining[සංස්කරණය]Naturally occurring deposits of nahcolite (NaHCO3) are found in the Eocene-age (55.8 ± 0.2 - 33.9 ± 0.1 Ma) Green River Formation, Piceance Basin in Colorado. Nahcolite was deposited as beds during periods of high evaporation in the basin. It is commercially mined using in-situ leach techniques involving dissolution of the nahcolite by heated water which is pumped through the nahcolite beds and reconstituted through a natural cooling crystallization process.Chemistry[සංස්කරණය]Sodium bicarbonate is an amphoteric compound. Aqueous solutions are mildly alkaline due to the formation of carbonic acid and hydroxide ion:HCO−3 +  H2O   →  H2CO3 + OH−Sodium bicarbonate can be used as a wash to remove any acidic impurities from a "crude" liquid, producing a purer sample. Reaction of sodium bicarbonate and an acid to give a salt and carbonic acid, which readily decomposes to carbon dioxide and water:NaHCO3 + HCl → NaCl + H2CO3H2