CALCIUM CARBONATE AND MAGNESIUM HYDROXIDE SOLUBILITY PRODUCT VALUES FOR HETEROGENEOUS SYSTEMS

1978 ◽  
pp. 531-545 ◽  
Author(s):  
Herman N.S. Wiechers
Keyword(s):  
Calcium Carbonate ◽  
Magnesium Hydroxide ◽  
Solubility Product ◽  
Heterogeneous Systems

scholarly journals Simultaneous assaying of famotidine, calcium carbonate and magnesium hydroxide in the extemporaneously prepared suspension

2017 ◽  
Vol 4 (2) ◽  
pp. 47
Author(s):  
Yevgeniy Lytvynenko ◽  
Artem Myhal ◽  
Olga Golovchenko ◽  
Victoriya Georgiyants
Keyword(s):  
Calcium Carbonate ◽  
Magnesium Hydroxide

Study of Carbonizing Processes for Sintered Dolomite

2007 ◽  
Vol 336-338 ◽  
pp. 2552-2555 ◽  
Author(s):  
Jing Hua Xue ◽  
Min Fang Han ◽  
Qing Yun Wang
Keyword(s):  
Calcium Carbonate ◽  
Calcium Hydroxide ◽  
Magnesium Hydroxide ◽  
Room Temperature ◽  
Xrd Analysis ◽  
Magnesium Carbonate ◽  
Crystal Phase ◽  
Carbonization Process

It is the easy and widely used way to make light calcium carbonate and magnesium carbonate from dolomite by carbonizing process. During this process, the dolomite is calcined at different temperature, from 700°C to 950°C to get the mixture including either calcium carbonate and magnesia or calcia and magnesia. Then the mixture is blended with water in different temperature from room temperature to 80°C. As a result, it is supposed to get calcium hydroxide and magnesium hydroxide, but XRD analysis reveals that it is not accord with the theory. Magnesium hydroxide can not be obtained during this reaction. After the carbonization process, the calcium carbonate and a kind of mixture which is composed with different crystal phase of Mg5(CO3)4(OH)2[H2O]4 have been produced, instead of magnesium carbonate. The magnesia is gotten when the mixture is calcined at 450~750°C.

scholarly journals The solubility of calcium carbonate in tropical sea water

1941 ◽  
Vol 25 (2) ◽  
pp. 235-242 ◽  
Author(s):  
C. L. Smith
Keyword(s):  
Calcium Carbonate ◽  
Solubility Product ◽  
Sea Water ◽  
Natural Conditions ◽  
The West ◽  
Equilibrium Conditions ◽  
Maximum Value ◽  
Andros Island ◽  
Tropical Sea ◽  
Made In

In a previous paper (Smith, 1940b) the chemical changes observed in ocean sea water flowing across the shallow banks on the west coast of Andros Island (Bahamas) were reported. High salinities were produced by evaporation and calcium carbonate was precipitated. From the data obtained under natural conditions a maximum value of the solubility product constant of calcium carbonate in sea water was suggested. There was no reason to believe, however, that this value of the constant represented the true equilibrium conditions, and experiments have since been made in the laboratory with a view to bringing water from these banks into equilibrium with solid calcium carbonate.

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