General Water Solubility Guidelines


            All Compounds of Na+, K+, NH4+ (most Li+)

            All Compounds of NO3-, NO2-, ClO3-, ClO4-,{CH3COO- Slightly Soluble}

           All Compounds of Cl-, Br -, I-, SCN- (except Ag+, Hg22+ ,Pb2+ {PbCl2 Soluble in hot water})   

            All compounds of SO42- (except Sr2+, Ba2+, Pb2+ , {Ag+, Ca2+, Hg2+ Slightly})

            Hydroxides: LiOH, NaOH, KOH, NH4 OH, Ca(OH)2, Sr(OH)2, Ba(OH)2


 Mostly Insoluble:

            Compounds of O2- ,OH- (except Na+, K+, NH4+,  Ca2+, Ba2+, Sr2+)

            Compounds of CO32-, PO43-, PO33-, SO32-,F-,S2-,AsO43-,AsO33-,SiO32- (except Na+, K+, NH4+)

            Compounds of  C2O42- (except Na+, K+, NH4+, Fe3+, {Mg2+ Slightly})

             Compounds of  CrO42-,(except Na+, K+, NH4+, Mg2+, Ca2+, Cu2+, Sr2+)