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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