Lime is soluble in water to a small extent forming calcium hydroxide. What methods are available to increase the concentrations of calcium ions and hydroxide ions in aqueous solution?
Species distribution diagram of Ca(II) 4 × 10−4 mol/L as a function of pH is given in
Article Flotation and adsorption of a new collector α-Bromodecanoic ...
Mr. Palanki,
The protocols of mining are around 60 years ago (even more depending of the mining type). There is really plenty of literature furthermore at an industrial scale. In particular all related with nuclear fuel mining is almost constnt. there is not any novelty, therein.
Generally, you could make the system acidic (reduce pH) or add suitable complexing agents.
The solubility of calcium hydroxide is considerably higher in glycerol than in water. It also increases for glycerol―water solutions.Cf. (e.g.): Article The Solubility of Lime in Aqueous Solutions of Sugar and Glycerol
A.C. Venter (Bio-Energy Ingredients Ltd.), "Glycerol compositions and solutions", US Patent 2014/0106008 A1
About predicting the pH of Ca(OH)2 aq. solutions (saturated or not) ― cf. my posts (§ III., IV, V.) at:
https://www.researchgate.net/post/How-to-increase-pH-for-a-solution-without-making-a-chemical-reaction-with-CaCl2
Just cool the solution. Calcium hydroxide is Retrograde soluble, meaning it's solubility increases with lowering of temperature. At 0 Deg C, 20 Deg C and 100 Deg C, solubilities are 1.89, 1.65 and 0.66 gm/Liter, respectively.
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