Solubility Products

Author: Hans Lohninger

Compound	Formula	Temperature	Ksp
aluminium hydroxide anhydrous	Al(OH)3	20°C	1.9×10-33
		25°C	3×10-34
aluminium hydroxide trihydrate	Al(OH)3	20°C	4×10-13
		25°C	3.7×10-13
aluminium phosphate	AlPO4	25°C	9.84×10-21
barium bromate	Ba(BrO3)2	25°C	2.43×10-4
barium carbonate	BaCO3	16°C	7×10-9
		25°C	8.1×10-9
barium chromate	BaCrO4	28°C	2.4×10-10
barium fluoride	BaF2	25.8°C	1.73×10-6
barium iodate dihydrate	Ba(IO3)2	25°C	6.5×10-10
barium oxalate dihydrate	BaC2O4	18°C	1.2×10-7
barium sulfate	BaSO4	18°C	0.87×10-10
		25°C	1.08×10-10
		50°C	1.98×10-10
beryllium hydroxide	Be(OH)2	25°C	6.92×10-22
cadmium carbonate	CdCO3	25°C	1.0×10-12
cadmium hydroxide	Cd(OH)2	25°C	7.2×10-15
cadmium oxalate trihydrate	CdC2O4	18°C	1.53×10-8
cadmium phosphate	Cd3(PO4)2	25°C	2.53×10-33
cadmium sulfide	CdS	18°C	3.6×10-29
calcium carbonate calcite	CaCO3	15°C	0.99×10-8
		25°C	0.87×10-8
		18-25°C	4.8×10-9
calcium chromate	CaCrO4	18°C	2.3×10-2
calcium fluoride	CaF2	18°C	3.4×10-11
		25°C	3.95×10-11
calcium hydroxide	Ca(OH)2	18°C-25°C	8×10-6
		25°C	5.02×10-6
calcium iodate hexahydrate	Ca(IO3)2	18°C	6.44×10-7
calcium oxalate monohydrate	CaC2O4	18°C	1.78×10-9
calcium oxalate monohydrate	CaC2O4	25°C	2.57×10-9
calcium phosphate tribasic	Ca3(PO4)2	25°C	2.07×10-33
calcium sulfate	CaSO4	10°C	6.1×10-5
		25°C	4.93×10-5
calcium tartrate dihydrate	CaC4H4O6	18°C	7.7×10-7
chromium hydroxide II	Cr(OH)2	25°C	2×10-16
chromium hydroxide III	Cr(OH)3	25°C	6.3×10-31
cobalt hydroxide II	Co(OH)2	25°C	1.6×10-15
cobalt sulfide (less soluble form)	CoS	18°C	3×10-26
cobalt sulfide (more soluble form)	CoS	18°C-25°C	10-21
cupric carbonate	CuCO3	25°C	1×10-10
cupric hydroxide	Cu(OH)2	18°C-25°C	6×10-20
		25°C	4.8×10-20
cupric iodate	Cu(IO3)2	25°C	1.4×10-7
cupric oxalate	CuC2O4	25°C	2.87×10-8
cupric sulfide	CuS	18°C	8.5×10-45
cuprous bromide	CuBr	18°C-20°C	4.15×10-8
cuprous chloride	CuCl	18°C-20°C	1.02×10-6
cuprous hydroxide (in equilib. with Cu2O + H2O)	Cu(OH)	25°C	2×10-15
cuprous iodide	CuI	18°C-20°C	5.06×10-12
cuprous sulfide	Cu2S	16°C-18°C	2×10-47
cuprous thiocyanate	CuSCN	18°C	1.64×10-11
ferric hydroxide	Fe(OH)3	18°C	1.1×10-36
ferrous carbonate	FeCO3	18°C-25°C	2×10-11
ferrous hydroxide	Fe(OH)2	18°C	1.64×10-14
		25°C	1×10-15; 8.0×10-16
ferrous oxalate	FeC2O4	25°C	2.1×10-7
ferrous sulfide	FeS	18°C	3.7×10-19
lead bromide	PbBr2	25°C	6.3×10-6; 6.60×10-6
lead carbonate	PbCO3	18°C	3.3×10-14
lead chromate	PbCrO4	18°C	1.77×10-14
lead chloride	PbCl2	25.2°C	1.0×10-4
		18°C-25°C	1.7×10-5
lead fluoride	PbF2	18°C	3.2×10-8
	2	26.6°C	3.7×10-8
lead hydroxide	Pb(OH)2	25°C	1×10-16; 1.43×10-20
lead iodate	Pb(IO3)2	18°C	1.2×10-13
		25.8°C	2.6×10-13
lead iodide	PbI2	15°C	7.47×10-9
		25°C	1.39×10-8
lead oxalate	PbC2O4	18°C	2.74×10-11
lead sulfate	PbSO4	18°C	1.6×10-8
lead sulfide	PbS	18°C	3.4×10-28
lithium carbonate	Li2CO3	25°C	1.7×10-3
lithium fluoride	LiF	25°C	1.84×10-3
lithium phosphate tribasic	Li3PO4	25°	2.37×10-4
magnesium ammonium phosphate	MgNH4PO4	25°C	2.5×10-13
magnesium carbonate	MgCO3	12°C	2.6×10-5
magnesium fluoride	MgF2	18°C	7.1×10-9
		25°C	6.4×10-9
magnesium hydroxide	Mg(OH)2	18°C	1.2×10-11
magnesium oxalate	MgC2O4	18°C	8.57×10-5
manganese carbonate	MnCO3	18°C-25°C	9×10-11
manganese hydroxide	Mn(OH)2	18°C	4×10-14
manganese sulfide (pink)	MnS	18°C	1.4×10-15
manganese sulfide (green)	MnS	25°C	10-22
mercuric bromide	HgBr2	25°C	8×10-20
mercuric chloride	HgCl2	25°C	2.6×10-15
mercuric hydroxide (equilib. with HgO + H2O)	Hg(OH)2	25°C	3.6×10-26
mercuric iodide	HgI2	25°C	3.2×10-29
mercuric sulfide	HgS	18°C	4×10-53 to 2×10-49
mercurous bromide	HgBr	25°C	1.3×10-21
mercurous chloride	Hg2Cl2	25°C	2×10-18
mercurous iodide	HgI	25°C	1.2×10-28
mercurous sulfate	Hg2SO4	25°C	6×10-7; 6.5×10-7
nickel hydroxide	Ni(OH)2	25°C	5.48×10-16
nickel sulfide	NiS	18°C	1.4×10-24
nickel sulfide (less soluble form)	NiS	18°C-25°C	10-27
nickel sulfide (more soluble form)	NiS	18°C-25°C	10-21
potassium acid tartrate	KHC4H4O6	18°C	3.8×10-4
potassium perchlorate	KClO4	25°C	1.05×10-2
potassium periodate	KIO4	25°	3.71×10-4
silver acetate	AgC2H3O2	16°C	1.82×10-3
silver bromate	AgBrO3	20°C	3.97×10-5
		25°C	5.77×10-5
silver bromide	AgBr	18°C	4.1×10-13
		25°C	7.7×10-13
silver carbonate	Ag2CO3	25°C	6.15×10-12
silver chloride	AgCl	4.7°C	0.21×10-10
		9.7°C	0.37×10-10
		25°C	1.56×10-10
		50°C	13.2×10-10
		100°C	21.5×10-10
silver chromate	Ag2CrO4	14.8°C	1.2×10-12
		25°C	9×10-12
silver cyanide	Ag2(CN)2	20°C	2.2×10-12
silver dichromate	Ag2Cr2O7	25°C	2×10-7
silver hydroxide	AgOH	20°C	1.52×10-8
silver iodate	AgIO3	9.4°C	0.92×10-8
silver iodide	AgI	13°C	0.32×10-16
		25°C	1.5×10-16
silver nitrite	AgNO2	25°C	5.86×10-4
silver oxalate	Ag2C2O4	25°C	1.3×10-11
silver sulfate	Ag2SO4	18°C-25°C	1.2×10-5
silver sulfide	Ag2S	18°C	1.6×10-49
silver thiocyanate	AgSCN	18°C	0.49×10-12
		25°C	1.16×10-12
strontium carbonate	SrCO3	25°C	1.6×10-9
strontium chromate	SrCrO4	18°C-25°C	3.6×10-5
strontium fluoride	SrF2	18°C	2.8×10-9
strontium oxalate	SrC2O4	18°C	5.61×10-8
strontium sulfate	SrSO4	2.9°C	2.77×10-7
		17.4°C	2.81×10-7
thallous bromide	TlBr	25°C	4×10-6
thallous chloride	TlCl	25°C	2.65×10-4
thallous sulfate	Tl2SO4	25°C	3.6×10-4
thallous thiocyanate	TlSCN	25°C;	2.25×10-4
tin hydroxide	Sn(OH)2	18°C-25°C	1×10-26
tin hydroxide	Sn(OH)2	25°C	5.45×10-27; 1.4×10-28
tin(II) sulfide	SnS	25°C	10-28
zinc hydroxide	Zn(OH)2	18°C-20°C	1.8×10-14
zinc oxalate dihydrate	ZnC2O4	18°C	1.35×10-9
zinc sulfide	ZnS	18°C	1.2×10-23