Solubility Product Constant

What is Constant Of Solubility Product??

Compounds that not easy to soluble in water, ionization of compound itself is an equilibrium reaction, it means rate of reaction between soluble and not soluble in equilibrium condition.
For example AgCl :



Not only AgCl having but also others such as bellow table having the

Table of Solubility Product Constants (K_sp at 25^o C)

Bromides	PbBr2	6.3 x 10-6
	AgBr	3.3 x 10-13
Carbonates	BaCO3	8.1 x 10-9
	CaCO3	3.8 x 10-9
	CoCO3	8.0 x 10-13
	CuCO3	2.5 x 10-10
	FeCO3	3.5 x 10-11
	PbCO3	1.5 x 10-13
	MgCO3	4.0 x 10-5
	MnCO3	1.8 x 10-11
	NiCO3	6.6 x 10-9
	Ag2CO3	8.1 x 10-12
	ZnCO3	1.5 x 10-11
Chlorides	PbCl2	1.7 x 10-5
	AgCl	1.8 x 10-10
Chromates	BaCrO4	2.0 x 10-10
	CaCrO4	7.1 x 10-4
	PbCrO4	1.8 x 10-14
	Ag2CrO4	9.0 x 10-12
Cyanides	Ni(CN)2	3.0 x 10-23
	AgCN	1.2 x 10-16
	Zn(CN)2	8.0 x 10-12
Fluorides	BaF2	1.7 x 10-6
	CaF2	3.9 x 10-11
	PbF2	3.7 x 10-8
	MgF2	6.4 x 10-9
Hydroxides	AgOH	2.0 x 10-8
	Al(OH)3	1.9 x 10-33
	Ca(OH)2	7.9 x 10-6
	Cr(OH)3	6.7 x 10-31
	Co(OH)2	2.5 x 10-16
	Cu(OH)2	1.6 x 10-19
	Fe(OH)2	7.9 x 10-15
	Fe(OH)3	6.3 x 10-38
	Pb(OH)2	2.8 x 10-16
	Mg(OH)2	1.5 x 10-11
	Mn(OH)2	4.6 x 10-14
	Ni(OH)2	2.8 x 10-16
	Zn(OH)2	4.5 x 10-17
Iodides	PbI2	8.7 x 10-9
	AgI	1.5 x 10-16
Oxalates	BaC2O4	1.1 x 10-7
	CaC2O4	2.3 x 10-9
	MgC2O4	8.6 x 10-5
Phosphates	AlP04	1.3 x 10-20
	Ba3(P04)2	1.3 x 10-29
	Ca3(P04)2	1.0 x 10-25
	CrP04	2.4 x 10-23
	Pb3(P04)2	3.0 x 10-44
	Ag3P04	1.3 x 10-20
	Zn3(P04)2	9.1 x 10-33
Sulfates	BaS04	1.1 x 10-10
	CaS04	2.4 x 10-5
	PbS04	1.8 x 10-8
	Ag2S04	1.7 x 10-5
Sulfides	CaS	8 x 10-6
	CoS	5.9 x 10-21
	CuS	7.9 x 10-37
	FeS	4.9 x 10-18
	Fe2S3	1.4 x 10-88
	PbS	3.2 x 10-28
	MnS	5.1 x 10-15
	NiS	3.0 x 10-21
	Ag2S	1.0 x 10-49
	ZnS	2.0 x 10-25
Sulfites	BaS03	8.0 x 10-7
	CaS03	1.3 x 10-8
	Ag2S03	1.5 x 10-14