I am trying to study solubility of calcium hydroxide in water with glycerol increase. It is observed to have a positive effect on solubility of calcium hydroxide. Recently I came to know that the calcium hydroxide I mix has some carbonate in there too. Need to know if this too remains in the solution or precipitates to the bottom.
Indeed, calcium hydroxide is considerably more soluble in glycerol or in water-glycerol mixtures than in water, where it is only slightly soluble. Cf. (e.g.): A.C. Venter (Bio-Energy Ingredients Ltd.), US Patent 2014/0106008 A1, "Glycerol compositions and solutions"; or the following link; Apr. 17, 2014. It can be partially carbonated by the effect of (atmospheric or dissolved) CO2: Ca(OH)2 + CO2 → CaCO3 + H2O.
http://www.fao.org/ag/agn/jecfa-additives/specs/Monograph1/Additive-086.pdf
Thank you Carlos. So are you implying with your equation that even in a glycerol-water mixture, the CaCO3 formed would settle at the bottom?
Dear Melvin:
Calcium carbonate is expected to slowly precipitate in the water-glycerol mixture; however, owing to the thickening effect of glycerol (due to its viscosity), the CaCO3 suspension can to be significantly more stable than in water. You may want to check: http://www.sciencedirect.com/science/article/pii/S0022024815000986
calcium hydoxide react with glycerine and the complex is soluble in water
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials