Gypsum solubility in water at 25°C

@article{Lebedev2017GypsumSI,
  title={Gypsum solubility in water at 25°C},
  author={A. L. Lebedev and V. L. Kosorukov},
  journal={Geochemistry International},
  year={2017},
  volume={55},
  pages={205-210}
}
The analysis of published data and our experimental results showed that the existing estimates of gypsum solubility in water (Cm↑) at 25°C range from 0.0147 to 0.0182 M. Such a scatter (more than 20%) is the result of a combined influence of experimental conditions and ability of gypsum to form supersaturated solutions. This influence appears most noticeable during gypsum dissolution in a dispersed state. Under such conditions, equilibrium is determined with a precision of no better than ±4.5… 
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References

SHOWING 1-10 OF 37 REFERENCES
SOLUBILITY OF GYPSUM IN AQUEOUS SOLUTIONS OF SALTS
The system CaSO4-NaCI-H2O-CO2, part of the system CaCO3-CaSO4-NaCl-H2O-CO2, was investigated through a range of NaCl concentrations. Calcite and gypsum solubilities were studied under conditions
Kinetics of gypsum dissolution in water
  • A. Lebedev
  • Materials Science
    Geochemistry International
  • 2015
The kinetics of dissolution of different lithological varieties of gypsum was experimentally investigated at 5–25°C and P = 0.1 MPa, and a simple rate model was proposed on the basis of the sum of
Prediction of gypsum solubility and scaling limits in saline waters
Gypsum solubility in natural seawater and agricultural drainage water was measured at temperatures between 25 and 70 O C . Solubilities at higher lonlc strengths were also measured In natural water
Solubility of fine particles of strontium sulfate
The Ostwald-Freundlich equation for the solubility of fine particles was extended to crystals of any geometry with any number of different interfacial tensions. Measuring the particle sizes by
The kinetics of dissolution of calcium sulphate dihydrate in water
Solubilities in the system CaSO4‐NaCl‐H2O at 25° and 35°
Solubilities of both gypsum and anhydrite in solution with sodium chloride, varied in concentration up to saturation, have been determined at 25° and for gypsum only at 35°. Sodium chloride lowers
ON THE SOLUBILITY OF ANHYDROUS CALCIUM SULPHATE AND OF GYPSUM IN CONCENTRATED SOLUTIONS OF SODIUM CHLORIDE AT 25 °C, 30 °C, 40 °C, AND 50 °C
The solubilities of anhydrous CaSO4 and CaSO4.2H2O in concentrated aqueous solutions of NaCl at a series of temperatures—25 °C, 30 °C, 40 °C, and 50 °C, have been determined. It was found that the
The Gypsum-Anhydrite Equilibrium at One Atmosphere Pressure
The equilibrium temperature for the reaction CaSO*l4*s.2H*l2*sO=CaSO* l4*s+2H*l2*sO*l(liq. soln)*s has been determined as a function of activity of H* l2*sO (a*lH*l2*sO*s) of the solution. Synthetic
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