Thermodynamic Modeling of Calcium Sulfate Hydrates in a CaSO<sub>4</sub>–H<sub>2</sub>SO<sub>4</sub>–H<sub>2</sub>O System from 273.15 to 473.15 K up to 5 <i>m</i> Sulfuric Acid
Leiting Shen, Hannu Sippola, Xiaobin Li, Daniel Lindberg, Pekka Taskinen
Abstract
solutions, while hemihydrate is always a metastable phase. Furthermore, the predicted results were compared with previous experimental studies to verify the accuracy of the model.
Topics & Concepts
AnhydriteSulfuric acidSolubilityGypsumChemistryPitzer equationsAqueous solutionHemihydrateThermodynamicsInorganic chemistryActivity coefficientSulfateMineralogyPhysical chemistryMetallurgyMaterials scienceOrganic chemistryPhysicsCalcium Carbonate Crystallization and InhibitionChemical and Physical Properties in Aqueous SolutionsMine drainage and remediation techniques