Solubility of Some Ionic Compounds in Water  Pictoral View of This Table
 Negative Ion
(anion)
 plus  Positive Ion
(cation)
form a
  compound 
which is 
1. Any anion  + Alkali ions (Li+1, Na+1, K+1, Rb+1 or Cs+1 " Soluble
2. Any anion + Ammonium ion, NH4+1 " Soluble
3. Nitrate, NO3-1 + Any cation " Soluble
4. Acetate, CH3COO-1 + Any cation except Ag+1 " Soluble
5  Fluoride, F-1 + Mg+2, Ca2+, Sr2+, Ba2+, Li1+ or Pb+1 " Insoluble
      + Any other cation " Soluble
6.  Chloride, Cl-1 + Ag+1, Pb2+, Hg22+ (Hg1+), Tl1+, Au3+ or Cu+1 " Insoluble

+ Any other cation " Soluble
7.  Bromide, Br-1 + Ag+1, Pb2+, Hg1+, Hg2+ , or Cu+1 " Insoluble
       + Any other cation " Soluble
8.  Iodide, I-1 + Ag+1, Pb2+, Hg1+, Hg2+, or Cu+1 " Insoluble
     + Any other cation " Soluble
9.  Sulphate, SO42-  + Ca2+, Sr2+, Ba2+, Ra2+, Ag1+, Hg1+ or Pb2+ " Insoluble
      + Any other cation " Soluble
10.  Sulphide, S2- + Alkali ions, Alkali Earth ions or NH4+ " Soluble
      + Any other cation " Insoluble
11.  Hydroxide, OH-1 + Alkali ions, NH4+1, Sr2+, Ba2+, or Ra2+ " Soluble
      + Any other cation " Insoluble
12. Cyanide, CN1- + Ag1+ or Zn2+ " Insoluble
      + Any other cation " Soluble
13. Phosphate, PO43- + Mg2+, Sr2+, Ba2+, La2+, Fe2+, Ag1+, Fe3+, Zn2+, Pb2+ or Ba2+ " Insoluble 
      + Any other cation " Soluble
14. Carbonate, CO32- + Mg2+, Ca2+, Sr2+, Ba2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Ag1+, Hg1+, Zn2+, Cd2+ or Pb2+ " Insoluble
     + Any other cation " Soluble
15.  Sulphite, SO32- + Ca2+, Ag1+ or Ba2+ " Insoluble
     + Any other cation " Soluble
16. Chromate, CrO42- + Ba2+, Cu2+, Ag1+, Hg1+, Ca2+ or Pb2+ " Insoluble
      + Any other cation  " Soluble