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17 results about "Calcium sulfite" patented technology

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Calcium sulfite, or calcium sulphite, is a chemical compound, the calcium salt of sulfite with the formula CaSO₃·x(H₂O). Two crystalline forms are known, the hemihydrate and the tetrahydrate, respectively CaSO₃·½(H₂O) and CaSO₃·4(H₂O). All forms are white solids. It is most notable as the product of flue-gas desulfurization.