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This article in SSSAJ

  1. Vol. 33 No. 5, p. 668-672
    Received: Feb 26, 1969



Theoretical Consideration of the Calcium Sulfate-Bicarbonate-Carbonate Interrelation in Soil Solution1

  1. F. S. Nakayama2



The probable distributions of the ion-pairs CaSO4° and CaCO3°, and complex CaHCO3+ in solution are discussed thermodynamically and graphically in terms of SO42-, CO32-, HCO3-, and H+ activities. In alkali media where the CO32- form predominates, the CaCO3° species will dominate the CaSO4° and CaHCO3+ forms and is a significant part of the total calcium in solution.

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