ตารางค่าคงที่สมดุลของการละลายของเกลือ
ตารางค่าคงที่สมดุลของการละลายของเกลือ
ค่าคงที่สมดุลของการละลาย( Ksp ) ของเกลือบางชนิดที่ 25°C
ชื่อสาร | ปฏิกิริยาการแตกตัว | Ksp |
---|
Barium chromate | BaCrO4 → Ba2+ + CrO42-
CrO42- + 2H2O → H2CrO4 + 2OH- |
1.2x10-10 |
Barium fluoride | BaF2 → Ba2+ + 2F-
2F- + H2O → 2HF + 2OH- |
1.0x10-6 |
Barium sulfate | BaSO4 → Ba2+ + SO42-
SO42- + 2H2O → H2SO4 + 2OH- |
1.1x10-10 |
Cadmium oxalate | CdC2O4 → Cd2+ + C2O42-
C2O42- + 2H2O → H2C2O4 + 2OH- |
1.5x10-8 |
Cadmium sulfide | CdS → Cd2+ + S2-
S2- + 2H2O → H2S + 2OH- |
8.0x10-27 |
Calcium carbonate | CaCO3 → Ca2+ + CO32-
CO32- + 2H2O → H2CO3 + 2OH- |
3.8x10-9 |
Calcium fluoride | CaF2 → Ca2+ + 2F-
2F- + 2H2O → 2HF + 2OH- |
3.4x10-11 |
Calcium oxalate | CaC2O4 → Ca2+ + C2O42-
C2O42- + 2H2O → H2C2O4 + 2OH- |
2.3x10-9 |
Calcium phosphate | Ca3(PO4)2 → Ca2+ + PO43-
PO43- + 2H2O → H3PO4 + 3OH- |
1.0x10-26 |
Calcium sulfate | CaSO4 → Ca2+ + SO42-
SO42- + 2H2O → H2SO4 + 2OH- |
2.4x10-5 |
Cobalt(II) sulfide | CoS → Co2+ + S2-
S2- + 2H2O → H2S + 2OH- |
4.0x10-36 |
Copper(II) sulfide | CuS → Cu2+ + S2-
S2- + 2H2O → H2S + 2OH- |
6.0x10-36 |
Iron(II) sulfide | FeS → Fe2+ + S2-
S2- + 2H2O → H2S + 2OH- |
6.0x10-16 |
Lead(II) arsenate | Pb3(AsO4)2 → Pb32+ + AsO42-
AsO42- + 2H2O → H2AsO4 + 2OH- |
4.0x10-36 |
Lead(II) chloride | PbCl2 → Pb2+ + 2Cl-
Cl- + H2O → HCl + OH- |
1.6x10-5 |
Lead(ll) chromate | PbCrO4 → Pb2+ + CrO42-
CrO42- + 2H2O → H2CrO4 + 2OH- |
1.8x10-14 |
Lead(II) odide | PbI2 → Pb2+ + 2I-
I- + H2O → HI + OH- |
6.5x10-9 |
Lead(II) sulfate | PbSO4 → Pb2+ + SO42-
SO42- + 2H2O → H2SO4 + 2OH- |
1.7x10-8 |
Lead(II) sulfide | PdS → Pb2+ + S2-
S2- + 2H2O → H2S + 2OH- |
2.5x10-27 |
Magnesium arsenate | Mg3(AsO4)2 → Mg2+ + AsO42-
AsO42- + 2H2O → H2AsO4 + 2OH- |
2.0x10-20 |
Magnesium carbonate | MgCO3 → Mg2+ + CO32-
CO32- + 2H2O → H2CO3 + 2OH- |
1.0x10-5 |
Magnesium oxalate | MgC2O4 → Mg2+ + C2O42-
C2O42- + 2H2O → H2C2O4 + 2OH- |
8.5x10-5 |
Manganese(II) sulfide | MnS → Mn2+ + S2-
S2- + 2H2O → H2S + 2OH- |
2.5x10-10 |
Mercury(I) chloride | Hg2Cl2 → Hg2+ + Cl-
Cl- + 2H2O → HClS + OH- |
1.3x10-18 |
Mercury(II) sulfide | HgS → Hg2+ + S2-
S2- + 2H2O → H2S + 2OH- |
|
Nickel(II) sulfide | NiS → Ni2+ + S2-
S2- + 2H2O → H2S + 2OH- |
3.0x10-19 |
Silver acetate | AgC2H3O2 → Ag+ + C2H3O2-
C2H3O2- + 2H2O → C2H3O2 + 2OH- |
2.0x10-3 |
Silver bromide | AgBr → Ag+ + Br-
Br- + 2H2O → HBr + OH- |
5.0x10-13 |
Silver chloride | AgCl → Ag+ + Cl-
Cl- + 2H2O → HClS + OH- |
1.8x10-10 |
Silver chromate | Ag2CrO4 → Ag+ + CrO42-
CrO42- + 2H2O → H2CrO4 + 2OH- |
1.1x10-10 |
Silver iodide | AgI → Ag+ + I-
I- + 2H2O → HIS + OH- |
8.3x10-17 |
Silver sulfide | Ag2S → Ag+ + S2-
S2- + 2H2O → H2SO4 + 2OH- |
6.0x10-50 |
Strontium carbonate | SrCO3 → Sr2+ + CO32-
CO32- + 2H2O → H2CO3 + 2OH- |
9.3x10-10 |
Strontium chromate | SrCrO4 → Sr2+ + CrO42-
CrO42- + 2H2O → H2CrO4 + 2OH- |
3.5x10-5 |
Strontium sulfate | SrSO4 → Sr2+ + SO42-
SO42- + 2H2O → H2SO4 + 2OH- |
2.1x10-7 |
Zinc sulfide | ZnS → Zn2+ + S2-
S2- + 2H2O → H2S + 2OH- |
1.1x10-21 |