Solubility Product Constants at 25 Degrees Celsius

The solubility product works as follows: In a water solution at equilibrium with a slightly soluble ionic compound, the product of the concentration of the ions, raised to the power of its coefficient in the solubility equation, is a constant. The solubility constant, Ksp, has a fixed value at a given temperature and is independent of the concentration of the individual ions. Here are values of Ksp for several slightly soluble ionic solids: Actetates AgC2H3O2 -- 2 x 10-3 Bromides AgBr -- 5 x 10-13PbBr2 -- 5 x 10-6 Carbonates BaCO3 -- 2 x 10-9CaCO3 -- 5 x 10-9MgCO3 -- 2 x 10-8 Chlorides AgCl -- 1.6 x 10-10Hg2Cl2 -- 1 x 10-18PbCl2 -- 1.7 x 10-5 Chromates Ag2CrO4 -- 2 x 10-12BaCrO4 -- 2 x 10-10PbCrO4 -- 1 x 10-16SrCrO4 -- 4 x 10-5 Fluorides BaF2 -- 2 x 10-6CaF2 -- 2 x 10-10PbF2 -- 4 x 10-8 Hydroxides Al(OH)3 -- 5 x 10-33Cr(OH)3 -- 4 x 10-38Fe(OH)2 -- 1 x 10-15Fe(OH)3 -- 5 x 10-38Mg(OH)2 -- 1 x 10-11Zn(OH)2 -- 5 x 10-17 Iodides AgI -- 1 x 10-16PbI2 -- 1 x 10-8 Sulfates BaSO4 -- 1.4 x 10-9CaSO4 -- 3 x 10-5PbSO4 -- 1 x 10-8 Sulfides Ag2S -- 1 x 10-49CdS -- 1 x 10-26CoS -- 1 x 10-20CuS -- 1 x 10-35FeS -- 1 x 10-17HgS -- 1 x 10-52MnS -- 1 x 10-15NiS -- 1 x 10-19PbS -- 1 x 10-27ZnS -- 1 x 10-20