CHEM 106 - General Chemistry 2
8/1/03

Solubility product constants are extremely difficult to obtain experimentally because of the necessity to identify all chemical species and processes present in the chemical system used to obtain their values. Literature Ksp values may disagree widely, even by several orders of magnitude. The Ksp values found in this table are nominal values for use in my General Chemistry courses and do not necessarily represent the best-kown values of the solubility product constants.
Solubility Product Constant (Ksp) Values at 25 oC
Salt
Ksp
Salt
Ksp
Salt
Ksp
Bromides
Carbonates
Oxalates
PbBr2
6.6 x 10-6
MgCO3
6.8 x 10-6
MgC2O4
4.8 x 10-6
CuBr
6.3 x 10-9
NiCO3
1.3 x 10-7
FeC2O4
2 x 10-7
AgBr
5.4 x 10-13
CaCO3
5.0 x 10-9
NiC2O4
1 x 10-7
Hg2Br2
6.4 x 10-23
SrCO3
5.6 x 10-10
SrC2O4
5 x 10-8
Chlorides
MnCO3
2.2 x 10-11
CuC2O4
3 x 10-8
PbCl2
1.2 x 10-5
CuCO3
2.5 x 10-10
BaC2O4
1.6 x 10-7
CuCl
1.7 x 10-7
CoCO3
1.0 x 10-10
CdC2O4
1.4 x 10-8
AgCl
1.8 x 10-10
FeCO3
2.1 x 10-11
ZnC2O4
1.4 x 10-9
Hg2Cl2
1.4 x 10-18
ZnCO3
1.2 x 10-10
CaC2O4
2.3 x 10-9
Fluorides
Ag2CO3
8.1 x 10-12
Ag2C2O4
3.5 x 10-11
BaF2
1.8 x 10-7
CdCO3
6.2 x 10-12
PbC2O4
4.8 x 10-12
MgF2
7.4 x 10-11
PbCO3
7.4 x 10-14
Hg2C2O4
1.8 x 10-13
SrF2
2.5 x 10-9
Hydroxides
MnC2O4
1 x 10-15
CaF2
1.5 x 10-10
Ba(OH)2
5.0 x 10-3
Phosphates
Iodides
Sr(OH)2
6.4 x 10-3
Ag3PO4
8.9 x 10-17
PbI2
8.5 x 10-9
Ca(OH)2
4.7 x 10-6
AlPO4
9.8 x 10-21
CuI
1.1 x 10-12
Mg(OH)2
5.6 x 10-12
Mn3(PO4)2
1 x 10-22
AgI
8.5 x 10-17
Mn(OH)2
2.1 x 10-13
Ba3(PO4)2
3 x 10-23
Hg2I2
4.5 x 10-29
Cd(OH)2
5.3 x 10-15
BiPO4
1.3 x 10-23
Sulfates
Pb(OH)2
1.2 x 10-15
Sr3(PO4)2
4 x 10-28
CaSO4
7.1 x 10-5
Fe(OH)2
4.9 x 10-17
Pb3(PO4)2
7.9 x 10-43
Ag2SO4
1.2 x 10-5
Ni(OH)2
5.5 x 10-16
Chromates
Hg2SO4
6.8 x 10-7
Co(OH)2
1.1 x 10-15
CaCrO4
7.1 x 10-4
SrSO4
3.5 x 10-7
Zn(OH)2
4.1 x 10-17
SrCrO4
2.2 x 10-5
PbSO4
1.8 x 10-8
Cu(OH)2
1.6 x 10-19
Hg2CrO4
2.0 x 10-9
BaSO4
1.1 x 10-10
Hg(OH)2
3.1 x 10-26
BaCrO4
1.2 x 10-10
Acetates
Sn(OH)2
5.4 x 10-27
Ag2CrO4
2.0 x 10-12
Ag(CH3COO)
4.4 x 10-3
Cr(OH)3
6.7 x 10-31
PbCrO4
2.8 x 10-13
Hg2(CH3COO)2
4 x 10-10
Al(OH)3
1.9 x 10-33
Fe(OH)3
2.6 x 10-39

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