64, Gadolinium (Gd)

Johan Gadolin (finnischer Chemiker)

Massenwirkungsgesetz

         
   
  Eu Gd Tb  
  Am Cm Bk  
         
 

Löslichkeitsprodukte:

Substanz Formel Reaktion pL β (g/L)

Gadoliniumacetat Gd(CH3COO)3 Gd(CH3COO)3 ↔ Gd3+ + 3CH3COO- 0.41 1.16•102
Gadoliniumarsenat GdAsO4 GdAsO4 ↔ Gd3+ + AsO43- 21.7 4.18•10-9
Gadoliniumcarbonat Gd2(CO3)3 Gd2(CO3)3 ↔ 2Gd3+ + 3CO32- 34.7 2.23•10-5
Gadoliniumfluorid GdF3 GdF3 ↔ Gd3+ + 3F- 16.9 5.6•10-3
Gadoliniumhydrogencarbonat Gd(HCO3)3 Gd(HCO3)3 ↔ Gd3+ + 3HCO3- 1.7 5.61•101
Gadoliniumhydroxid Gd(OH)3 Gd(OH)3 ↔ Gd3+ + 3OH- 22.74 1.89•10-4
Gadoliniumiodat Gd(IO3)3 Gd(IO3)3 ↔ Gd3+ + 3IO3- 11.8 3.35•10-1
Gadoliniumoxalat Gd2(C2O4)3 Gd2(C2O4)3 ↔ 2Gd3+ + 3C2O42- 31.37 1.21•10-4
Gadoliniumphosphat GdPO4 GdPO4 ↔ Gd3+ + PO43- 24.3 1.79•10-10
Gadoliniumsulfat Gd2(SO4)3 Gd2(SO4)3 ↔ 2Gd3+ + 3SO42- 4.79 2.6•101

Komplexdissoziationskonstanten:

Komplex Formel Reaktion pD

Dicarbonatogadolinat Gd(CO3)2- Gd(CO3)2- ↔ Gd3+ + 2CO32- 13.1
Dioxalatogadolinat Gd(C2O4)2- Gd(C2O4)2- ↔ Gd3+ + 2C2O42- 10.82
Diphosphatogadolinat Gd(PO4)23- Gd(PO4)23- ↔ Gd3+ + 2PO43- 20.7
Disulfatogadolinat Gd(SO4)2- Gd(SO4)2- ↔ Gd3+ + 2SO42- 5.1
Gadolinium-EDTA-Komplex Gd(EDTA)- Gd(EDTA)- ↔ Gd3+ + EDTA4- 17.35
Tetrachloridogadolinat GdCl4- GdCl4- ↔ Gd3+ + 4Cl- -0.89
Tetrafluoridogadolinat GdF4- GdF4- ↔ Gd3+ + 4F- 12.49