Experimental Data on Solubility of the Two Calcium Sulfates Gypsum and Anhydrite in Aqueous Solutions

Reza Taherdangkoo (), Miaomiao Tian, Ali Sadighi, Tao Meng, Huichen Yang and Christoph Butscher
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Reza Taherdangkoo: TU Bergakademie Freiberg, Institute of Geotechnics, Gustav-Zeuner-Str. 1, 09599 Freiberg, Germany
Miaomiao Tian: School of Mines, China University of Mining and Technology, Xuzhou 221116, China
Ali Sadighi: TU Bergakademie Freiberg, Institute of Geotechnics, Gustav-Zeuner-Str. 1, 09599 Freiberg, Germany
Tao Meng: Taiyuan University of Science and Technology, Taiyuan 030024, China
Huichen Yang: Department of Applied Geology, Geosciences Center, University of Göttingen, Goldschmidtstr. 3, D-37077 Göttingen, Germany
Christoph Butscher: TU Bergakademie Freiberg, Institute of Geotechnics, Gustav-Zeuner-Str. 1, 09599 Freiberg, Germany

Data, 2022, vol. 7, issue 10, 1-9

Abstract: Calcium sulfate exists in three forms, namely dihydrate or gypsum (CaSO 4 ·2H 2 O), anhydrite (CaSO 4 ), and hemihydrate or bassanite (CaSO 4 ·0.5H 2 O) depending on temperature, pressure, pH, and formation conditions. The formation of calcium sulfates occurs widely in nature and in many engineering settings. Herein, a dataset containing the experimental solubility data of calcium sulfate minerals, i.e., gypsum and anhydrite, in aqueous solutions is presented. The compiled dataset contains calcium sulfates solubility values extracted from 42 papers published between 1906 and 2019. The dataset can be used for various scientific and engineering purposes such as environmental applications (e.g., gas treatment, wastewater treatment, and chemical disposal), geotechnical applications (e.g., clay-sulfate rock swelling), separation processes (e.g., crystallization, extractive distillation, and seawater desalination), and electrochemical processes (e.g., corrosion and electrolysis).

Keywords: dihydrate; pure water; saline solutions; phase equilibria; fluid–mineral equilibria; densities (search for similar items in EconPapers)
JEL-codes: C8 C80 C81 C82 C83 (search for similar items in EconPapers)
Date: 2022
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