Solubility Products

K_sp values for many ionic compounds

name	formula	Ksp
aluminium hydroxide	Al(OH)3	3.0 × 10-34
aluminium phosphate	AlPO4	9.8 × 10-21
barium bromate	Ba(BrO3)2	2.4 × 10-4
barium carbonate	BaCO3	2.6 × 10-9
barium chromate	BaCrO4	1.2 × 10-10
barium fluoride	BaF2	1.8 × 10-7
barium hydroxide octahydrate	Ba(OH)2 · 8H2O	2.6 × 10-4
barium iodate	Ba(IO3)2	4.0 × 10-9
barium iodate monohydrate	Ba(IO3)2 · H2O	1.7 × 10-9
barium molybdate	BaMoO4	3.5 × 10-8
barium nitrate	Ba(NO3)2	4.6 × 10-3
barium selenate	BaSeO4	3.4 × 10-8
barium sulfate	BaSO4	1.1 × 10-10
barium sulfite	BaSO3	5.0 × 10-10
beryllium hydroxide	Be(OH)2	6.9 × 10-22
bismuth arsenate	BiAsO4	4.4 × 10-10
bismuth iodide	BiI	7.7 × 10-19
cadmium arsenate	Cd3(AsO4)2	2.2 × 10-33
cadmium carbonate	CdCO3	1.0 × 10-12
cadmium fluoride	CdF2	6.4 × 10-3
cadmium hydroxide	Cd(OH)2	7.2 × 10-15
cadmium iodate	Cd(IO3)2	2.5 × 10-8
cadmium oxalate trihydrate	CdC2O4 · 3H2O	1.4 × 10-8
cadmium phosphate	Cd3(PO4)2	2.5 × 10-33
cadmium sulfide	CdS	1.0 × 10-27
caesium perchlorate	CsClO4	4.0 × 10-3
caesium periodate	CsIO4	5.1 × 10-6
calcium carbonate (calcite)	CaCO3	3.4 × 10-9
calcium carbonate (aragonite)	CaCO3	6.0 × 10-9
calcium fluoride	CaF2	3.5 × 10-11
calcium hydroxide	Ca(OH)2	5.0 × 10-6
calcium iodate	Ca(IO3)2	6.5 × 10-6
calcium iodate hexahydrate	Ca(IO3)2 · 6H2O	7.1 × 10-7
calcium molybdate	CaMoO	1.5 × 10-8
calcium oxalate monohydrate	CaC2O4 · H2O	2.3 × 10-9
calcium phosphate	Ca3(PO4)2	2.1 × 10-33
calcium sulfate	CaSO4	4.9 × 10-5
calcium sulfate dihydrate	CaSO4 · 2H2O	3.1 × 10-5
calcium sulfate hemihydrate	CaSO4 · 0.5H2O	3.1 × 10-7
cerium(III) iodate	Ce(IO3)3	1.4 × 10-11
cobalt(II) arsenate	CO3(AsO4)2	6.8 × 10-29
cobalt(II) carbonate	CoCO3	1.0 × 10-10
cobalt(II) hydroxide (blue)	Co(OH)2	5.9 × 10-15
cobalt(II) iodate dihydrate	Co(IO3)2 · 2H2O	1.2 × 10-2
cobalt(II) phosphate	CO3(PO4)2	2.1 × 10-35
cobalt(II) sulfide (alpha)	CoS	5.0 × 10-22
cobalt(II) sulfide (beta)	CoS	3.0 × 10-26
copper(I) bromide	CuBr	6.3 × 10-9
copper(I) chloride	CuCl	1.7 × 10-7
copper(I) cyanide	CuCN	3.5 × 10-20
copper(I) iodide	CuI	1.3 × 10-12
copper(I) thiocyanate	CuSCN	1.8 × 10-13
copper(II) arsenate	Cu3(AsO4)2	8.0 × 10-36
copper(II) hydroxide	Cu(OH)2	4.8 × 10-20
copper(II) iodate monohydrate	Cu(IO3)2 · H2O	6.9 × 10-8
copper(II) oxalate	CuC2O4	4.4 × 10-10
copper(II) phosphate	Cu3(PO4)2	1.4 × 10-37
copper(II) sulfide	CuS	8.0 × 10-37
chromium(III) iodate	Cr(IO3)3	5.0 × 10-6
europium(III) hydroxide	Eu(OH)3	9.4 × 10-27
gallium(III) hydroxide	Ga(OH)3	7.3 × 10-36
iron(II) carbonate	FeCO3	3.1 × 10-11
iron(II) fluoride	FeF2	2.4 × 10-6
iron(II) hydroxide	Fe(OH)2	4.9 × 10-17
iron(II) sulfide	FeS	8.0 × 10-19
iron(III) hydroxide	Fe(OH)3	2.8 × 10-39
iron(III) iodate	Fe(IO3)3	4.0 × 10-8
iron(III) phosphate dihydrate	FePO4 · 2H2O	9.9 × 10-16
lanthanum iodate	La(IO3)3	7.5 × 10-12
lead(II) bromide	PbBr2	6.6 × 10-6
lead(II) carbonate	PbCO3	7.4 × 10-14
lead(II) chloride	PbCl2	1.7 × 10-5
lead(II) chromate	PbCrO4	3.0 × 10-13
lead(II) fluoride	PbF2	3.3 × 10-8
lead(II) hydroxide	Pb(OH)2	1.4 × 10-20
lead(II) iodate	Pb(IO3)2	3.7 × 10-13
lead(II) iodide	PbI2	9.8 × 10-9
lead(II) oxalate	PbC2O4	8.5 × 10-9
lead(II) selenate	PbSeO4	1.4 × 10-7
lead(II) sulfate	PbSO4	2.5 × 10-8
lead(II) sulfide	PbS	3.0 × 10-28
lithium carbonate	Li2CO3	8.2 × 10-4
lithium fluoride	LiF	1.8 × 10-3
lithium phosphate	Li3PO4	2.4 × 10-4
magnesium ammonium phosphate	MgNH4PO4	3.0 × 10-13
magnesium carbonate	MgCO3	6.8 × 10-6
magnesium carbonate trihydrate	MgCO3 · 3H2O	2.4 × 10-6
magnesium carbonate pentahydrate	MgCO3 · 5H2O	3.8 × 10-6
magnesium fluoride	MgF2	5.2 × 10-11
magnesium hydroxide	Mg(OH)2	5.6 × 10-12
magnesium oxalate dihydrate	MgC2O4 · 2H2O	4.8 × 10-6
magnesium phosphate	Mg3(PO4)2	1.0 × 10-24
manganese(II) carbonate	MnCO3	2.2 × 10-11
manganese(II) iodate	Mn(IO3)2	4.4 × 10-7
manganese(II) hydroxide	Mn(OH)2	2.0 × 10-13
manganese(II) oxalate dihydrate	MnC2O4 · 2H2O	1.7 × 10-7
manganese(II) sulfide (pink)	MnS	3.0 × 10-11
manganese(II) sulfide (green)	MnS	3.0 × 10-14
mercury(I) bromide	Hg2Br2	6.4 × 10-23
mercury(I) carbonate	Hg2CO3	3.6 × 10-17
mercury(I) chloride	Hg2Cl2	1.4 × 10-18
mercury(I) fluoride	Hg2F2	3.1 × 10-6
mercury(I) iodide	Hg2I2	5.2 × 10-29
mercury(I) oxalate	Hg2C2O4	1.75 × 10-13
mercury(I) sulfate	Hg2SO4	6.5 × 10-7
mercury(I) thiocyanate	Hg2(SCN)2	3.2 × 10-20
mercury(II) bromide	HgBr2	6.2 × 10-20
mercury(II) hydroxide	Hg(OH)2	3.6 × 10-26
mercury(II) iodide	HgI2	2.9 × 10-29
mercury(II) sulfide (black)	HgS	2.0 × 10-53
mercury(II) sulfide (red)	HgS	2.0 × 10-54
neodymium carbonate	Nd2(CO3)3	1.1 × 10-33
nickel(II) carbonate	NiCO3	1.4 × 10-7
nickel(II) hydroxide	Ni(OH)2	5.5 × 10-16
nickel(II) iodate	Ni(IO3)2	4.7 × 10-5
nickel(II) phosphate	Ni3(PO4)2	4.7 × 10-32
nickel(II) sulfide (alpha)	NiS	4.0 × 10-20
nickel(II) sulfide (beta)	NiS	1.3 × 10-25
palladium(II) thiocyanate	Pd(SCN)2	4.4 × 10-23
potassium hexachloroplatinate	K2PtCl6	7.5 × 10-6
potassium perchlorate	KClO4	1.1 × 10-2
potassium periodate	KIO4	3.7 × 10-4
praseodymium hydroxide	Pr(OH)3	3.4 × 10-24
radium iodate	Ra(IO3)2	1.2 × 10-9
radium sulfate	RaSO4	3.7 × 10-11
rubidium perchlorate	RuClO4	3.0 × 10-3
scandium fluoride	ScF3	5.8 × 10-24
scandium hydroxide	Sc(OH)3	2.2 × 10-31
silver(I) acetate	AgCH3COO	1.9 × 10-3
silver(I) arsenate	Ag3AsO4	1.0 × 10-22
silver(I) bromate	AgBrO3	5.4 × 10-5
silver(I) bromide	AgBr	5.4 × 10-13
silver(I) carbonate	Ag2CO3	8.5 × 10-12
silver(I) chloride	AgCl	1.8 × 10-10
silver(I) chromate	Ag2CrO4	1.1 × 10-12
silver(I) cyanide	AgCN	6.0 × 10-17
silver(I) iodate	AgIO3	3.2 × 10-8
silver(I) iodide	AgI	8.5 × 10-17
silver(I) oxalate	Ag2C2O4	5.4 × 10-12
silver(I) phosphate	Ag3PO4	8.9 × 10-17
silver(I) sulfate	Ag2SO4	1.2 × 10-5
silver(I) sulfite	Ag2SO3	1.5 × 10-14
silver(I) sulfide	Ag2S	8.0 × 10-51
silver(I) thiocyanate	AgSCN	1.0 × 10-12
strontium arsenate	Sr3(AsO4)2	4.3 × 10-19
strontium carbonate	SrCO3	5.6 × 10-10
strontium fluoride	SrF2	4.3 × 10-9
strontium iodate	Sr(IO3)2	1.1 × 10-7
strontium iodate monohydrate	Sr(IO3)2 · H2O	3.8 × 10-7
strontium iodate hexahydrate	Sr(IO3)2 · 6H2O	4.6 × 10-7
strontium oxalate	SrC2O4	5.0 × 10-8
strontium sulfate	SrSO4	3.4 × 10-7
thallium(I) bromate	TlBrO3	1.1 × 10-4
thallium(I) bromide	TlBr	3.7 × 10-6
thallium(I) chloride	TlCl	1.9 × 10-4
thallium(I) chromate	Tl2CrO4	8.7 × 10-13
thallium(III) hydroxide	Tl(OH)3	1.7 × 10-44
thallium(I) iodate	TlIO3	3.1 × 10-6
thallium(I) iodide	TlI	5.5 × 10-8
thallium(I) thiocyanate	TlSCN	1.6 × 10-4
thallium(I) sulfide	Tl2S	6.0 × 10-22
tin(II) hydroxide	Sn(OH)2	5.5 × 10-27
yttrium carbonate	Y2(CO3)3	1.0 × 10-31
yttrium fluoride	YF3	8.6 × 10-21
yttrium hydroxide	Y(OH)3	1.0 × 10-22
yttrium iodate	Y(IO3)3	1.1 × 10-10
zinc arsenate	Zn3(AsO4)2	2.8 × 10-28
zinc carbonate	ZnCO3	1.5 × 10-10
zinc carbonate monohydrate	ZnCO3 · H2O	5.4 × 10-11
zinc fluoride	ZnF	3.0 × 10-2
zinc hydroxide	Zn(OH)2	3.0 × 10-17
zinc iodate dihydrate	Zn(IO3)2 · 2H2O	4.1 × 10-6
zinc oxalate dihydrate	ZnC2O4 · 2H2O	1.4 × 10-9
zinc selenide	ZnSe	3.6 × 10-26
zinc selenite monohydrate	ZnSe · H2O	1.6 × 10-7
zinc sulfide (α)	ZnS	2.0 × 10-25
zinc sulfide (β)	ZnS	3.0 × 10-23

Sources
 CRC Handbook of Chemistry and Physics, 84th edition (2004)
 Lange's Handbook of Chemistry, 15th edition (1999)