Abstract
The boundaries of phase equilibria involving calcium sulfate crystal hydrates in a citric acid solution were calculated. The influence exerted by an excess amount of sulfuric acid on the stability of calcium sulfate crystal hydrates in citric acid solutions was considered. The possibility of achieving a hemihydrate mode of citric acid extraction from calcium citrate was studied.
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Pavlov, K.A., Dmitrevskii, B.A. Influence of Crystallization Conditions in Production of Citric Acid on the Properties of Forming Calcium Sulfate. Russian Journal of Applied Chemistry 76, 1408–1413 (2003). https://doi.org/10.1023/B:RJAC.0000012658.87436.b6
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DOI: https://doi.org/10.1023/B:RJAC.0000012658.87436.b6