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In the "black ash" process, celesite is roasted with coke at 1100–1300 °C to form strontium sulfide. [3] The sulfate is reduced, leaving the sulfide: SrSO 4 + 2 C → SrS + 2 CO 2. A mixture of strontium sulfide with either carbon dioxide gas or sodium carbonate then leads to formation of a precipitate of strontium carbonate. [4] [3]
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Solubility tables; Substance Formula 0 °C 10 °C 15 °C 20 °C 30 °C 40 °C 50 °C 60 °C ... (C 6 H 5) 4: 47: Sodium thiosulfate: Na 2 S 2 O 3: 71.5: 73: 77.6: 90 ...
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The effect of the particle size on solubility constant can be quantified as follows: = + where *K A is the solubility constant for the solute particles with the molar surface area A, *K A→0 is the solubility constant for substance with molar surface area tending to zero (i.e., when the particles are large), γ is the surface tension ...
8.04 (9.4 °C) Silver iodide: 15.82 Silver thiocyanate: 11.94 Strontium carbonate: 8.80 ... Solubility products of metal sulfides (data page) References
This page was last edited on 11 August 2005, at 05:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Solubility constants are used to describe saturated solutions of ionic compounds of relatively low solubility (see solubility equilibrium). The solubility constant is a special case of an equilibrium constant. Since it is a product of ion concentrations in equilibrium, it is also known as the solubility product. It describes the balance between ...