Gypsum, disodium pentacalcium sulfate, and anhydrite solubilities in concentrated sodium chloride solutions

1970 ◽  
Vol 48 (23) ◽  
pp. 3733-3738 ◽  
Author(s):  
D. N. Glew ◽  
D. A. Hames
Keyword(s):  
Sodium Chloride ◽  
Calcium Sulfate ◽  
Double Salt ◽  
Chloride Solutions ◽  
Sodium Chloride Solutions ◽  
Calcium Sulfate Hemihydrate

The solubility of gypsum and anhydrite have been determined at 65 °C in aqueous 3.0 to 6.1 m NaCl solutions. Gypsum solubility at 30 °C has been determined in 5.9 m NaCl and in saturated sodium chloride. At 65 °C gypsum reacts with sodium chloride solutions more concentrated than 3.7 m NaCl to form disodium pentacalcium sulfate, Na2Ca5(SCO4)6•3H2O, which is isomorphous with calcium sulfate hemihydrate. The solubility of this double salt has been determined at 65 °C in aqueous 4.0 to 6.3 m NaCl solutions.

Thermodynamic Difference between Protocatechualdehyde andp-Hydroxybenzaldehyde in Aqueous Sodium Chloride Solutions

2017 ◽  
Vol 62 (3) ◽  
pp. 902-912 ◽  
Author(s):  
Jimin Xie ◽  
Min Liu ◽  
Guiqin Liu ◽  
Lixia Yuan ◽  
Dacheng Li ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Chloride Solutions ◽  
Aqueous Sodium ◽  
Sodium Chloride Solutions
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