Appendix K: Solubility Products

Solubility Products

Table K.1 Solubility Products
Main Element Substance Ksp at 25 °C
aluminum Al(OH)3 2 × 10−32
barium BaCO3 1.6 × 10−9
barium BaC2O4·2H2O 1.1 × 10−7
barium BaSO4 2.3 × 10−8
barium BaCrO4 8.5 × 10−11
barium BaF2 2.4 × 10−5
barium Ba(OH)2·8H2O 5.0 × 10−3
barium Ba3(PO4)2 6 × 10−39
barium Ba3(AsO4)2 1.1 × 10−13
bismuth BiO(OH) 4 × 10−10
bismuth BiOCl 1.8 × 10−31
bismuth Bi2S3 1 × 10−97
cadmium Cd(OH)2 5.9 × 10−15
cadmium CdS 1.0 × 10−28
cadmium CdCO3 5.2 × 10−12
calcium Ca(OH)2 1.3 × 10−6
calcium CaCO3 8.7 × 10−9
calcium CaSO4·2H2O 6.1 × 10−5
calcium CaC2O4·H2O 1.96 × 10−8
calcium Ca3(PO4)2 1.3 × 10−32
calcium CaHPO4 7 × 10−7
calcium CaF2 4.0 × 10−11
chromium Cr(OH)3 6.7 × 10−31
cobalt Co(OH)2 2.5 × 10−16
cobalt CoS(α) 5 × 10−22
cobalt CoS(β) 3 × 10−26
cobalt CoCO3 1.4 × 10−13
cobalt Co(OH)3 2.5 × 10−43
copper CuCl 1.2 × 10−6
copper CuBr 6.27 × 10−9
copper CuI 1.27 × 10−12
copper CuSCN 1.6 × 10−11
copper Cu2S 2.5 × 10−48
copper Cu(OH)2 2.2 × 10−20
copper CuS 8.5 × 10−45
copper CuCO3 2.5 × 10−10
iron Fe(OH)2 1.8 × 10−15
iron FeCO3 2.1 × 10−11
iron FeS 3.7 × 10−19
iron Fe(OH)3 4 × 10−38
lead Pb(OH)2 1.2 × 10−15
lead PbF2 4 × 10−8
lead PbCl2 1.6 × 10−5
lead PbBr2 4.6 × 10−6
lead PbI2 1.4 × 10−8
lead PbCO3 1.5 × 10−15
lead PbS 7 × 10−29
lead PbCrO4 2 × 10−16
lead PbSO4 1.3 × 10−8
lead Pb3(PO4)2 1 × 10−54
magnesium Mg(OH)2 8.9 × 10−12
magnesium MgCO3·3H2O ca 1 × 10−5
magnesium MgNH4PO4 3 × 10−13
magnesium MgF2 6.4 × 10−9
magnesium MgC2O4 7 × 10−7
manganese Mn(OH)2 2 × 10−13
manganese MnCO3 8.8 × 10−11
manganese MnS 2.3 × 10−13
mercury Hg2O·H2O 3.6 × 10−26
mercury Hg2Cl2 1.1 × 10−18
mercury Hg2Br2 1.3 × 10−22
mercury Hg2I2 4.5 × 10−29
mercury Hg2CO3 9 × 10−15
mercury Hg2SO4 7.4 × 10−7
mercury Hg2S 1.0 × 10−47
mercury Hg2CrO4 2 × 10−9
mercury HgS 1.6 × 10−54
nickel Ni(OH)2 1.6 × 10−16
nickel NiCO3 1.4 × 10−7
nickel NiS(α) 4 × 10−20
nickel NiS(β) 1.3 × 10−25
potassium KClO4 1.05 × 10−2
potassium K2PtCl6 7.48 × 10−6
potassium KHC4H4O6 3 × 10−4
silver [latex]\frac{1}{2} \text{Ag}_2 \text{O}(\text{Ag}^{+} + \text{OH}^{-})[/latex] 2 × 10−8
silver AgCl 1.6 × 10−10
silver AgBr 5.0 × 10−13
silver AgI 1.5 × 10−16
silver AgCN 1.2 × 10−16
silver AgSCN 1.0 × 10−12
silver Ag2S 1.6 × 10−49
silver Ag2CO3 8.1 × 10−12
silver Ag2CrO4 9.0 × 10−12
silver Ag4Fe(CN)6 1.55 × 10−41
silver Ag2SO4 1.2 × 10−5
silver Ag3PO4 1.8 × 10−18
strontium Sr(OH)2·8H2O 3.2 × 10−4
strontium SrCO3 7 × 10−10
strontium SrCrO4 3.6 × 10−5
strontium SrSO4 3.2 × 10−7
strontium SrC2O4·H2O 4 × 10−7
thallium TlCl 1.7 × 10−4
thallium TlSCN 1.6 × 10−4
thallium Tl2S 6 × 10−22
thallium Tl(OH)3 6.3 × 10−46
tin Sn(OH)2 3 × 10−27
tin SnS 1 × 10−26
tin Sn(OH)4 1.0 × 10−57
zinc ZnCO3 2 × 10−10

Attribution & References

Except where otherwise noted, this page is adapted from “Appendix J: Solubility Products” In General Chemistry 1 & 2 by Rice University, a derivative of Chemistry (Open Stax) by Paul Flowers, Klaus Theopold, Richard Langley & William R. Robinson and is licensed under CC BY 4.0. ​Access for free at Chemistry (OpenStax)

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