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Solubility Product Constants
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Solubility Product Constants
Solubility Product Constants
Appendix B Solubility Product Constants Table B.1 Oxide Reaction pKsp BaO BaHPO4 MgO MgO MgHPO43H2O Mg(NH4)PO46H2O BaO + 2H+ ¼ Ba2+(aq) + H2O ...
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Appendix
B
Solubility Product Constants Table B.1 Oxide
Reaction
pKsp
BaO BaHPO4 MgO MgO MgHPO43H2O Mg(NH4)PO46H2O
BaO + 2H+ ¼ Ba2+(aq) + H2O
47.24 0.20 21.68 6.32 1.38 6.85
Mg3(PO4)2 Mg3(PO4)28H2O Mg3(PO4)222H2O MgKPO46H2O
BaHPO4 + H + ¼ Ba2 + ðaqÞ + H2 PO4 MgO + 2H+ ¼ Mg2+(aq) + H2O MgO + H2 O ¼ Mg2 + ðaqÞ + 2ðOH Þ MgHPO4 3H2 O + H + ¼ Mg2 + ðaqÞ + H2 PO4 + 3H2 O MgðNH4 ÞPO4 6H2 O + 2H + ¼ Mg2 + ðaqÞ + NH4 + + H2 PO4 + 6H2 O Mg3 ðPO4 Þ2 + 4H + ¼ 3Mg2 + ðaqÞ + 2H2 PO4 Mg3 ðPO4 Þ2 8H2 O + 4H + ¼ 3Mg2 + ðaqÞ + 2H2 PO4 + 8H2 O Mg3 ðPO4 Þ2 22H2 O + 4H + ¼ 3Mg2 + ðaqÞ + 2H2 PO4 + 22H2 O
15.82 13.9 16.0
MgKPO4 6H2 O + 2H + ¼ K + ðaqÞ + Mg2 + ðaqÞ + H2 PO4 + 6H2 O
3.55
Al2O3
AlO3=2 + 32H2 O ¼ Al3 + ðaqÞ + 3ðOH Þ
33.5
Al2O33H2O
AlO3=2 32H2 O ¼ Al3 + ðaqÞ + 3ðOH Þ
Al2O3H2O
AlO3=2 H2 O + H2 O ¼ Al ðaqÞ + 3ðOH Þ Al(OH)3 ¼ Al3+(aq) + 3(OH)
Al(OH)3 AlPO42H2O CaO CaO Ca3(PO4)2 CaHPO4 CaHPO42H2O Ca8H2(PO4)65H2O Ca5(PO4)3OH Ca5(PO4)3F Ca5(PO4)3Cl Ca9.54Na0.33Mg0.13(PO4)4.8(CO3)1.2F2.48
CaU(PO4)22H2O
1 2
3+
36.3
AlPO4 2H2 O + 2H + ¼ Al3 + ðaqÞ + H2 PO4 + 2H2 O CaO + 2H+ ¼ Ca2+(aq) + H2O CaO + H2O ¼ Ca2+(aq) + 2(OH) Ca3 ðPO4 Þ2 + 4H + ¼ 3Ca2 + ðaqÞ + 2H2 PO4 CaHPO4 + H + ¼ Ca2 + ðaqÞ + H2 PO4 CaHPO4 2H2 O + H + ¼ Ca2 + ðaqÞ + H2 PO4 + 2H2 O Ca8 H2 ðPO4 Þ6 5H2 O + 10H + ¼ 8Ca2 + ðaqÞ + 6H2 PO4 + 5H2 O Ca5 ðPO4 Þ3 OH + 6H + ¼ 5Ca2 + ðaqÞ + 3H2 PO4 + OH Ca5 ðPO4 Þ3 F + 6H + ¼ 5Ca2 + ðaqÞ + 3H2 PO4 + F Ca5 ðPO4 Þ3 Cl + 6H + ¼ 5Ca2 + ðaqÞ + 3H2 PO4 + Cl Ca9:54 Na0:33 Mg0:13 ðPO4 Þ4:8 ðCO3 Þ1:2 F2:48 + 9:6H + ¼ 9:54Ca2 + ðaqÞ + 0:33Na + ðaqÞ + 0:33Mg2 + + 1:2CO3 2 + 4:8H2 PO4 + 2:48F CaUðPO4 Þ2 2H2 O + 4H + ¼ Ca2 + ðaqÞ + U4 + ðaqÞ + 2H2 PO4 + 2H2 O
34.02 32.34 2.52 32.63 4.63 10.18 0.55 0.65 23.48 8.49 3.57 11.14 20.56
16.83
(Continued)
383
384 APPENDIX B Solubility Product Constants
Table B.1
Continued
Oxide
Reaction
pKsp
Ca(UO2)2(PO4)210H2O
CaðUO2 Þ2 ðPO4 Þ2 10H2 O + 4H + ¼ Ca2 + ðaqÞ + 2UO22 + ðaqÞ + 2H2 PO4 + 10H2 O Ce2O3 + 6H+ ¼ 2Ce3+(aq) + 3H2O CePO4 + 2H + ¼ Ce2 + ðaqÞ + H2 PO4 ThO2 + 4H+ ¼ Th4+(aq) + 2H2O ThO2 + 2H2O ¼ Th4+(aq) + 4OH
9.72
Ce2O3 CePO4 ThO2 ThO2 Th(HPO4)2 Th3(PO4)4 UO2 UO2 UO2 UO3 UO2HPO4
19.85 2.69 7.47 48.53 6.63
ThðHPO4 Þ2 + 2H + ¼ Th4 + ðaqÞ + 2H2 PO4
0.40
Th3 ðPO4 Þ4 + 8H + ¼ 3Th4 + ðaqÞ + 4H2 PO4 UO2 + 4H+ ¼ U4+(aq) + 2H2O UO2 + 2H2O ¼ U4+(aq) + 4OH UO2 + 3H+ ¼ U(OH)3+(aq) + H2O UO3 + 2H + ¼ UO2 2 + ðaqÞ + H2 O
3.8 52.2 2.63 4.97 3.48
UO2HPO44H2O
UO2 HPO4 + H + ¼ UO2 2 + ðaqÞ + H2 PO4 UO2 HPO4 4H2 O + H + ¼ UO2 2 + ðaqÞ + H2 PO4 + 4H2 O
(UO2)3(PO4)2
ðUO2 Þ3 ðPO4 Þ2 + 4H + ¼ 3UO2 2 + ðaqÞ + 2H2 PO4
7.2
H2(UO2)3(PO4)210H2O
H2 ðUO2 Þ3 ðPO4 Þ2 10H2 O + 2H + ¼ 2UO2 2 + ðaqÞ + 2H2 PO4 + 10H2 O
11.85
U(HPO4)2
UðHPO4 Þ2 + 2H ¼ U
UO2(NH4)PO4
UO2 ðNH4 ÞPO4 + 2H ¼ UO2 ðaqÞ + NH4 + H2 PO4 UO2 NH4 PO4 4H2 O + 2H + ¼ UO2 2 + ðaqÞ + NH4 + + H2 PO4 + 4H2 O Pu2O3 + 6H+ ¼ Pu3+(aq) + 3H2O PuO2 + 2H2O ¼ Pu4+(aq) + 4OH PuO2 + 4H+ ¼ Pu4+(aq) + 2H2O PuO3 + 2H + ¼ PuO2 2 + ðaqÞ + H2 O PuðHPO4 Þ2 + 2H + ¼ Pu4 + ðaqÞ + 2H2 PO4 Am2 O5 + 2H + ¼ 2AmO2 + ðaqÞ + H2 O
UO2NH4PO44H2O Pu2O3 PuO2 PuO2 PuO3 Pu(HPO4)2 Am2O5 AmO3 Am2O3 Am2O3 ZrO2 ZrO2 ZrO2 CrO CrO Cr2O3 Cr2O3 Cr2O3 CrPO4 MnO
+
4+
+
ðaqÞ + 2H2 PO4 2+
AmO3 + 2H + ¼ AmO2 2 + ðaqÞ + H2 O Am2O3 + 6H+ ¼ 2Am3+(aq) + 3H2O Am2O3 + 3H2O ¼ 2Am3+(aq) + 6(OH) ZrO2 + 4H+ ¼ Zr4+(aq) + 2H2O ZrO2 + 4H+ ¼ Zr4+(aq) + 2H2O ZrO2 + 2H+ ¼ ZrO2+(aq) + H2O CrO + 2H+ ¼ Cr2+(aq) + H2O CrO + H2O ¼ Cr2+(aq) + 2OH Cr2O3 + 6H+ ¼ 2Cr3+(aq) + 3H2O Cr2O3 + 4H+ ¼ 2CrOH2+(aq) + H2O Cr2 O3 + 2H + + H2 O ¼ 2CrðOHÞ2 ðaqÞ CrPO4 + 2H + ¼ Cr2 + ðaqÞ + H2 PO4 MnO + 2H+ ¼ Mn2+(aq) + H2O
3.42
13.09 +
6.85 5.89 22.28 33.72 1.78 13.19 13.29 2.8 2.26 22.43 19.57 5.64 50.36 7.7 10.99 17.01 8.39 4.58 1.64 3.07 17.82
APPENDIX B Solubility Product Constants 385 Table B.1
Continued
Oxide
Reaction
MnO FeO FeO Fe2O3 Fe2O3 Fe2O3
MnO + H2O ¼ Mn (aq) + 2OH FeO + 2H+ ¼ Fe2+(aq) + H2O FeO + H2O ¼ Fe2+(aq) + 2OH Fe2O3 + 6H+ ¼ 2Fe3+(aq) + 3H2O Fe2O3 + 4H+ ¼ 2FeOH2+(aq) + H2O Fe2 O3 + 2H + + H2 O ¼ 2FeðOHÞ2 + ðaqÞ Fe2O3 + 3H2O ¼ 2Fe3+(aq) + 6OH FePO4 + 2H + ¼ Fe2 + ðaqÞ + H2 PO4 CoO + 2H+ ¼ Co2+(aq) + H2O CoO + H2O ¼ Co2+(aq) + 2OH Co2O3 + 6H+ ¼ 2Co3+(aq) + 3H2O Co2O3 + 3H2O ¼ 2Co3+(aq) + 6OH CoHPO4 + H + ¼ Co2 + ðaqÞ + H2 PO4 Co3 ðPO4 Þ2 + 4H + ¼ 3Co2 + ðaqÞ + 2H2 PO4
Fe2O3 FePO4 CoO CoO Co2O3 Co2O3 CoHPO4 Co3(PO4)2 Co(UO2)2(PO4)27H2O NiO NiO Ni3(PO4)2 Ni(UO2)2(PO4)27H2O Cu2O CuO CuO Cu3(PO4)2 Cu3(PO4)23H2O Cu(UO2)2(PO4)27H2O SrO SrHPO4 Ag2O AgO AgO Ag2O3 Ag3PO4 Zn(OH)2 ε-Zn(OH)2 Zn(OH)2 ε-Zn(OH)2 Zn3PO4 α-Zn3PO44H2O
pKsp 2+
CoðUO2 Þ2 ðPO4 Þ2 7H2 O + 4H + ¼ Co2 + ðaqÞ + 2UO2 2 + ðaqÞ + 2H2 PO4 + 7H2 O NiO + 2H+ ¼ Ni2+(aq) + H2O NiO + H2O ¼ Ni2+(aq) + 2OH Ni3 ðPO4 Þ2 + 4H + ¼ 3Ni2 + ðaqÞ + 2H2 PO4 NiðUO2 Þ2 ðPO4 Þ2 7H2 O + 4H + ¼ Ni2 + ðaqÞ + 2UO2 2 + ðaqÞ + 2H2 PO4 + 7H2 O Cu2O + 2H+ ¼ 2Cu2+(aq) + H2O CuO + 2H+ ¼ Cu2+(aq) + H2O CuO + H2O ¼ Cu2+(aq) + 2OH Cu3 ðPO4 Þ2 + 4H + ¼ 3Cu2 + ðaqÞ + 2H2 PO4 Cu3 ðPO4 Þ2 3H2 O + 4H + ¼ 3Cu2 + ðaqÞ + 2H2 PO4 + 3H2 O CuðUO2 Þ2 ðPO4 Þ2 7H2 O + 4H + ¼ Cu2 + ðaqÞ + 2UO2 2 + ðaqÞ + 2H2 PO4 + 7H2 O SrO + 2H+ ¼ Sr2+(aq) + H2O SrHPO4 + H + ¼ Sr2 + ðaqÞ + H2 PO4 Ag2O + 2H+ ¼ 2Ag2+(aq) + H2O AgO + 2H+ ¼ Ag2+(aq) + H2O AgO + H2O ¼ Ag2+(aq) + 2OH Ag2O3 + 2H+ ¼ 2AgO+(aq) + H2O Ag3 PO4 + 2H + ¼ 3AgO + ðaqÞ + H2 PO4 Zn(OH)2 + 2H+ ¼ Zn2+(aq) + 2H2O ε-Zn(OH)2 + 2H+ ¼ Zn2+(aq) + 2H2O Zn(OH)2 ¼ Zn2+(aq) + 2OH ε-Zn(OH)2 ¼ Zn2+(aq) + 2OH Zn3 PO4 + 4H + ¼ 3Zn2 + ðaqÞ + 2H2 PO4 α Zn3 PO4 4H2 O + 4H + ¼ 3Zn2 + ðaqÞ + 2H2 PO4 + 4H2 O
10.18 13.29 14.71 0.72 3.15 7.84 42.72 2.34 15.03 12.97 1.05 43.05 0.49 4.36 9.90 12.41 15.59 8.82 9.50 0.84 7.89 20.11 2.21 3.98 12.80 41.15 0.29 6.33 3.53 31.53 11.10 2.0 12.26 10.96 15.74 17.04 7.6 3.84
(Continued)
386 APPENDIX B Solubility Product Constants
Table B.1
Continued
Oxide
Reaction
pKsp
Zn5(PO4)3OH
Zn5 ðPO4 Þ3 OH + H + ¼ 5Zn2 + ðaqÞ + 3PO4 3 + H2 O CdO + 2H+ ¼ Cd2+(aq) + H2O CdO + H2O ¼ Cd2+(aq) + 2OH HgO + 2H+ ¼ Hg2+(aq) + H2O HgO + H2O ¼ Hg2+(aq) + 2OH Hg2 HPO4 + H + ¼ Hg2 + ðaqÞ + H2 PO4 PbO + 2H+ ¼ Pb2+(aq) + H2O PbO + H2O ¼ Pb2+(aq) + 2OH PbO2 + 4H+ ¼ Pb4+(aq) + 2H2O
9.1
Pb3 ðPO4 Þ2 + 4H + ¼ 3Pb2 + ðaqÞ + 2H2 PO4
15.76 12.24 2.44 25.56 5.2 12.65 15.35 8.26 4.43
PbHPO4
PbHPO4 + H + ¼ Pb2 + ðaqÞ + H2 PO4
2.65
Pb5(PO4)3OH
Pb5 ðPO4 Þ3 OH + 6H + ¼ 5Pb2 + ðaqÞ + 3H2 PO4 + OH
Pb5(PO4)3F
Pb5 ðPO4 Þ3 F + 6H ¼ 5Pb ðaqÞ + 3H2 PO4 + F As2O3 + 2H+ ¼ 2AsO+(aq) + H2O As2O3 + H2O ¼ 2HAsO2 As2O5 + 3H2O ¼ 2H3AsO4 RaO + 2H+ ¼ Ra2+(aq) + H2O
CdO CdO HgO HgO Hg2HPO4 PbO PbO PbO2 Pb3(PO4)2
As2O3 As2O3 As2O5 RaO
+
2+
18.15 20.47 1.02 0.68 4.74 54.0
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